Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien xanh » hien hanh, hien nhanh, chieu xanh
tung tuan » trung tuan, hung tuan, quang tuan
tuan dang » tran dang, tuan bang, tuan dung
cong sang » cong lang, cong vang, cong bang
cong san » cong tac
phan dau » phan tu, hang dau

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 - thanh tung tuan dang ((cong san) or (((cong sang) or (cong dong)))) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - thanh tung tuan dang ((cong san) OR (((cong sang) OR (cong dong)))) phan dau.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh tung tuan dang ((cong san) or (((cong sang) or (cong dong)))) phan dau*.