Perhaps you should try some spelling variations:
tuan thong » toan thong, tran thong, tuan phong
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh tran » canh tranh, hanh trang, banh trang
tran tuan » tran xuan, tran quang, tran thanh
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (hieu manh)) - canh tran tuan thong cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (hieu manh)) - canh tran tuan thong cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (hieu manh)) - canh tran tuan thong cong tan toan ban*.