Perhaps you should try some spelling variations:
thanh dan » thanh san, thanh van, thanh dat
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van lam » van nam
lam duc » lam duoc, pham duc, nam duoc
duc ban » duc tan, duc van, dua ban
dan cua » dan ca, ban cua, dai cua

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 ky ((nang xa) or (nang cao)) hoi. hieu van lam duc ban thanh dan cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (nang cao)) hoi. hieu van lam duc ban thanh dan cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) or (nang cao)) hoi. hieu van lam duc ban thanh dan cua triet*.