Perhaps you should try some spelling variations:
phan khuc » phan khu, phan thuc, phan phuoc
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
sanh thu » sach thu, san thu, doanh thu
so sanh » do sanh
nang ma » tang ma, nang cao
va hanh » van hanh, va thanh, va danh
khuc va » khuc van, thuc va, chuc va
sang ma » tang ma, sang tao, sang tai
hieu ve » hieu va, hieu van
ve phan » va phan, ke phan, ve phat
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh thu ((((nang ma) OR (mang may))) OR (sang ma)) hoi. hieu ve phan khuc va hanh thai cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh thu ((((nang ma) OR (mang may))) OR (sang ma)) hoi. hieu ve phan khuc va hanh thai cua tu".
• Adding a wildcard symbol may retrieve word variants: so sanh thu ((((nang ma) OR (mang may))) OR (sang ma)) hoi. hieu ve phan khuc va hanh thai cua tu*.