Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
truong cua » truong ca, truong quan, truong cao
hien hanh » dieu hanh
thong cua » thong quan, thong tu, huong cua
trong van » trong cac
van than » van thanh, van thang, van tuan
than cap » khan cap, thanh lap, thanh cac

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 nhanh) or (hien hanh)) - thanh ((thong cua) or (truong cua)) dung trong van than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (hien hanh)) - thanh ((thong cua) OR (truong cua)) dung trong van than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (hien hanh)) - thanh ((thong cua) or (truong cua)) dung trong van than cap*.