Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
manh trung » thanh trung, manh hung, sinh trung
hien tinh » khien tinh, thien tinh, bien tinh
manh tung » manh hung, thanh tung
cua thong » cua thuong, cua khong, cua tong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 tinh - ((manh trung) or (manh tung)) cua thong cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien tinh - ((manh trung) OR (manh tung)) cua thong cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien tinh - ((manh trung) or (manh tung)) cua thong cong dan than cau*.