Perhaps you should try some spelling variations:
pham chuc » pham duc, pham huu, kham chua
hanh lam » thanh lap, hanh kem, hanh va
van hanh » van thanh, ban hanh, van anh
sanh thu » sach thu, san thu, doanh thu
chuc van » chu van, chuc va, thuc van
so sanh » do sanh
nang ma » sang ma, nang cao, mang may
lam cua » nam cua, lam chat
tang ma » mang may, tang van
hieu ve » hieu van
hieu va » lieu va, hieu qua
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 (tang ma)) hoi. ((hieu ve) or (hieu va)) pham chuc van hanh lam cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh thu ((nang ma) OR (tang ma)) hoi. ((hieu ve) OR (hieu va)) pham chuc van hanh lam cua tu.
• Adding a wildcard symbol may retrieve word variants: so sanh thu ((nang ma) or (tang ma)) hoi. ((hieu ve) or (hieu va)) pham chuc van hanh lam cua tu*.