Perhaps you should try some spelling variations:
thanh quang » nhanh quang, thanh quan, than quang
tuyen duong » tuyen dung
chieu sang » chieu sach, chieu xanh, hieu lang
tuan duong » tuong duong, van duong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu manh) or (chieu sang)) - thanh quang ((tuan duong) OR (tuyen duong)) cong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu sang)) - thanh quang ((tuan duong) OR (tuyen duong)) cong tan toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu manh) or (chieu sang)) - thanh quang ((tuan duong) OR (tuyen duong)) cong tan toan tap*".