Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh tung » thanh tung, manh tung, hanh dung
hanh mang » nhanh mang, hanh trang, nhanh lang
hua cong » cua cong, hoa cong, ha cong
qua cong » cua cong, qua song, va cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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 tung) or (hanh mang)) ((hua cong) or (qua cong)) cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((hanh tung) OR (hanh mang)) ((hua cong) OR (qua cong)) cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh tung) or (hanh mang)) ((hua cong) or (qua cong)) cong tan toan ban*.