Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet
nam duoc » nam thuoc, da duoc, dat duoc
duoc van » duoc va, duc van, duoc ban
va triet » va thiet, va trien, ve triet
su sach » so sach, vu sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
van anh » van thanh, tuan anh, van minh
anh vai » anh va, anh bai, anh van

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 ly nang xa hoi. thien van nam duoc van anh vai ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly nang xa hoi. thien van nam duoc van anh vai ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: su sach ly nang xa hoi. thien van nam duoc van anh vai ((cua triet) or (va triet))*.