Perhaps you should try some spelling variations:
tran thanh » ban thanh, van thanh, quan thanh
tran tranh » trang trinh, trong tranh, tan tran
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
san thanh » ban thanh, van thanh, son thanh
thanh cao » thanh ca, thanh cac, thanh thao
cong san » cong tac

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