'internal quarrels' is correct and can be used in written English.
You can use it to refer to arguments or disagreements between members of a group or organization. For example, "The company was weakened by internal quarrels that caused managers to take sides."
At the end of the day it's just becoming a classic party with its internal quarrels".
Far from glossing over such issues, Ms Baram lays bare the paper's internal quarrels.
Even before the defeat last week, the Free Democrats were quickly losing ground and riven with internal quarrels.
Protagonists in Greece's internal quarrels have long invoked external assistance, while furiously denouncing any foreign help given to their rivals.
More: this conflict now eclipses familiar internal quarrels between secular and religious, Sunni and Shia or left and right.
Talbott's State Department has its own internal quarrels with White House political operatives, but these intrigues get more cursory attention than Russia's.
The pact put a patina of success on an effort by the government that was characterized by internal quarreling and an occasionally humiliating and ultimately hopeless effort to bend the European Union to its will.
This grander vision is what Europe's leaders should be describing to their voters not making future expansion of the club dependent on an internal quarrel over its constitution.
Penney's internal quarrel intensified on Friday as Mr. Ackman released a five-page letter to the board and to the media, excoriating Mr. Ullman's decision-making and pressing the company to hire a new, permanent chief executive.
The team motto: "Never judge greatness by size". Independent since the break-up of Yugoslavia in the early 1990s, the Slovenians qualified for the 2000 European Championship (two draws and a loss) and 2002 World Cup (three losses amid internal quarreling).
No further action against Lee followed, even after Lee, frustrated by his inability to find a local publisher at Louvain for his complaints against Erasmus' biblical scholarship, published his criticisms at Paris, thus making an internal quarrel public.
