Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hien nhanh » hien hanh, tien thanh, dien thanh
hien xanh » hien hanh, chieu xanh, hien khanh
hanh dung » thanh dung, anh dung, hanh dong
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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 (((hien nhanh) OR (thien thanh)))) - hanh dung luan hung cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (((hien nhanh) OR (thien thanh)))) - hanh dung luan hung cong dan chan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (((hien nhanh) OR (thien thanh)))) - hanh dung luan hung cong dan chan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (((hien nhanh) OR (thien thanh)))) - hanh dung luan hung cong dan chan cau*.