Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
nam duoc » nam thuoc, da duoc, dat duoc
danh vai » danh sai, doanh van, dang van
te sach » toc sach
lang ha » long ha
duoc va » nuoc va, duc va, duoc ma
danh va » doanh va, hanh va, anh va
y lang » o lang, _ lang, tay lang
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y lang ha hoi. hieu van nam duoc va ((danh vai) or (danh va)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y lang ha hoi. hieu van nam duoc va ((danh vai) OR (danh va)) cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach y lang ha hoi. hieu van nam duoc va ((danh vai) or (danh va)) cua triet*.