Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hanh trang » thanh trung, canh tranh, minh trang
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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 (thien thanh)) - ((hanh trang) OR (hanh trinh)) cua nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (thien thanh)) - ((hanh trang) OR (hanh trinh)) cua nhung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (thien thanh)) - ((hanh trang) OR (hanh trinh)) cua nhung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (thien thanh)) - ((hanh trang) OR (hanh trinh)) cua nhung cong tan toan cau*.