Perhaps you should try some spelling variations:
van triet » va triet, van thiet, van trieu
ban thanh » ban hanh
ban hang » ngan hang
cam tuc » cam xuc, cam tu, nam thuc
vu sach » vu bach, su sach, vu khach
sach lo » sach dao, sach doi, sach hoi
long ha » dong ha, cong ha, dong hoa
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach lo ((nang xa) or (long ha)) hoi. hieu va cam tuc ((ban thanh) or (ban hang)) vi van triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach lo ((nang xa) OR (long ha)) hoi. hieu va cam tuc ((ban thanh) OR (ban hang)) vi van triet.
• Adding a wildcard symbol may retrieve word variants: vu sach lo ((nang xa) or (long ha)) hoi. hieu va cam tuc ((ban thanh) or (ban hang)) vi van triet*.