Perhaps you should try some spelling variations:
tran thanh » ban thanh, van thanh, quan thanh
tien thanh » tien thinh, den thanh
hanh trung » thanh trung, hanh trang, manh trung
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
trung va » truong va, trang va, trung ha
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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) OR (tran thanh)))) - hanh trung va thong cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (((tien thanh) OR (tran thanh)))) - hanh trung va thong cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (((tien thanh) OR (tran thanh)))) - hanh trung va thong cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (((tien thanh) OR (tran thanh)))) - hanh trung va thong cong dan toan cau*.