Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh toan
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh hang » thanh hoang, tranh hang, thanh hung
hien xanh » hien hanh, hien nhanh, hien khanh
va trong » va truong, va thong, va tuong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (chieu xanh)) - ((thanh thang) OR (thanh hang)) va trong cong tan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - ((thanh thang) OR (thanh hang)) va trong cong tan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (chieu xanh)) - ((thanh thang) OR (thanh hang)) va trong cong tan than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu xanh)) - ((thanh thang) OR (thanh hang)) va trong cong tan than cau*.