Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
thanh tung » thanh cong
hien danh » hien hanh, hien nhanh, hien khanh
hang cong » dang cong, hang nong, bang cong
cong san » cong tac
toan ban » van ban
tung va » trung va, tuong va, dung va
va hang » van hang, va nang, va lang

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 danh) or (thien danh)) - thanh tung va hang cong san ((toan tap) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien danh) OR (thien danh)) - thanh tung va hang cong san ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien danh) or (thien danh)) - thanh tung va hang cong san ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien danh) or (thien danh)) - thanh tung va hang cong san ((toan tap) OR (toan ban))*.