Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
cam truc » cau truc, nam truc, lam truoc
su sach » so sach
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, vu khach
van cam » van nam, van lam, van cau
v nang » va nang, vu nang, van nang
va dan » ca dan, va dao, va dau

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

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