Perhaps you should try some spelling variations:
pham chuc » pham duc, pham huu, kham chua
hieu van » hieu va, thien van, lieu va
sanh thu » sach thu, san thu, doanh thu
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
so sanh » do sanh
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
vi cua » vai cua, di cua
cua te » cua tu

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 xa) OR (lang xa)) hoi. hieu van ((pham chuc) or (van xay)) va thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh thu ((nang xa) OR (lang xa)) hoi. hieu van ((pham chuc) OR (van xay)) va thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh thu ((nang xa) OR (lang xa)) hoi. hieu van ((pham chuc) or (van xay)) va thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: so sanh thu ((nang xa) OR (lang xa)) hoi. hieu van ((pham chuc) or (van xay)) va thanh vi cua te*.