Perhaps you should try some spelling variations:
tranh tuan » tran tuan, tranh luan, thanh tuan
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
tuan hung » tran hung, luan hung, tuan dung
hung cong » nhung cong, hung cuong, phung cong
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 sang) or (hieu manh)) - canh tranh tuan hung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (hieu manh)) - canh tranh tuan hung cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (hieu manh)) - canh tranh tuan hung cong tan toan ban*.