Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
nhung cong » dung cong, thong cong, nhung don
hien xanh » hien hanh, hien nhanh, chieu xanh
hang cong » dang cong, hang nong, bang cong
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 - hanh trinh quan ((nhung cong) or (hang cong)) tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh quan ((nhung cong) OR (hang cong)) tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh quan ((nhung cong) or (hang cong)) tan toan cau*.