Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
su sach » so sach
tuc ban » thuc ban, truc ban, tu ban
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
lang xa » lang ha, dang xay, lang van
vu sach » vu bach, vu khach
y lang » o lang, _ lang, tay lang
thiet » thieu

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)) y lang xa hoi. hieu van cam tuc ban thanh van ((cua triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y lang xa hoi. hieu van cam tuc ban thanh van ((cua triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) y lang xa hoi. hieu van cam tuc ban thanh van ((cua triet) or (va thiet))*.