Perhaps you should try some spelling variations:
tran thanh » ban thanh, van thanh, quan thanh
hien xanh » hien hanh, hien nhanh, chieu xanh
dang cong » dung cong
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
cong san » cong tac
san tran » tan tran, ban tran, dang tran

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 ((tang cua) or (mang cua)) dang cong san tran thanh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((tang cua) OR (mang cua)) dang cong san tran thanh.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((tang cua) or (mang cua)) dang cong san tran thanh*.