Perhaps you should try some spelling variations:
thanh tung » thanh cong
dang cong » dung cong
hoc bien » hoc vien, hoa bien, hoc lien
tung cua » trung cua, tuong cua, dung cua
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan 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 bien) or (hoc hien)) tinh - thanh tung cua dang cong tan ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc bien) OR (hoc hien)) tinh - thanh tung cua dang cong tan ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc bien) or (hoc hien)) tinh - thanh tung cua dang cong tan ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ((hoc bien) or (hoc hien)) tinh - thanh tung cua dang cong tan ((toan cao) OR (toan tap))*.