Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
nhung dong » nhung don, nhung cong, nhung dung
bang thanh » dang thanh, tang thanh, nang thanh
hien xanh » hien hanh, hien nhanh, hien khanh
cap nhung » cam nhung, vap nhung, dap nhung
ban thanh » ban hanh, ban hang
tung cap » trung cap, cung cap, thong 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 tung cap nhung dong ((bang thanh) or (ban thanh)) san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - thanh tung cap nhung dong ((bang thanh) OR (ban thanh)) san.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (chieu xanh)) - thanh tung cap nhung dong ((bang thanh) or (ban thanh)) san".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (chieu xanh)) - thanh tung cap nhung dong ((bang thanh) or (ban thanh)) san*.