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