Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh
nam thuc » nam thuoc, am thuc, nam thu
ban hang » ngan hang
vu sach » vu bach, su sach, vu khach
sach lo » sach dao, sach doi, sach hoi
hieu va » lieu va, hieu qua
long ha » dong ha, cong ha, dong hoa
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
va nam » van nam, ha nam, va nay

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 nam thuc ((ban thanh) or (ban hang)) vi cua 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 nam thuc ((ban thanh) OR (ban hang)) vi cua triet.
• Adding a wildcard symbol may retrieve word variants: vu sach lo ((nang xa) or (long ha)) hoi. hieu va nam thuc ((ban thanh) or (ban hang)) vi cua triet*.