Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
luan nhung » luan chung, luan hung, quan nhung
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh dung » anh dung, hanh dong, manh dung
song van » hoang van, trong van, duong van
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 - ((hanh dung) OR (thanh dung)) luan nhung ((song van) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((hanh dung) OR (thanh dung)) luan nhung ((song van) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((hanh dung) OR (thanh dung)) luan nhung ((song van) or (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh dung) OR (thanh dung)) luan nhung ((song van) or (cong san)) toan cau*.