Perhaps you should try some spelling variations:
tien thanh » tien thinh, tran thanh, den thanh
hien xanh » hien hanh, hien nhanh, chieu xanh
anh quang » anh xquang, anh quan, nhanh quang
quang cua » quan cua, quang tuan, quang huy
cua nhung » va nhung
cong van » cong vang, song van, cong tan
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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 (tien thanh)) - anh quang cua nhung ((cong van) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (tien thanh)) - anh quang cua nhung ((cong van) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (tien thanh)) - anh quang cua nhung ((cong van) or (cong san)) toan cau*.