Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
thien van » thi van
va triet » va thiet, va trien, ve triet
duoc van » duc van, duoc ban, duoc dan
anh vai » anh va, anh bai, anh van
su sach » so sach, vu sach
duoc va » nuoc va, duc va, duoc ma
sach ty » sach y, sach tu, sach thu
van lam » van nam
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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 ty nang xa hoi. thien van lam ((duoc van) OR (duoc va)) anh vai ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. thien van lam ((duoc van) OR (duoc va)) anh vai ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. thien van lam ((duoc van) OR (duoc va)) anh vai ((cua triet) or (va triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. thien van lam ((duoc van) OR (duoc va)) anh vai ((cua triet) or (va triet))*.