Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thuat bang » thuat ban, thuat mang, thuat nang
hien xanh » hien hanh, hien nhanh, chieu xanh
chu bang » thu bang, chuc nang, chu quang
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, tra cau
ran cau » van cau, ban cau, can 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 - hanh trinh ((thuat bang) or (chu bang)) cong tan ((tran cau) or (ran cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh ((thuat bang) OR (chu bang)) cong tan ((tran cau) OR (ran cau)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh ((thuat bang) or (chu bang)) cong tan ((tran cau) or (ran cau))*.