Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
manh tran » manh toan, manh tuan, canh tranh
van nhung » van nhuong, va nhung, van hung
hoc dieu » hoc thieu, hoc hien
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
cong dan » cong san, cong tan, huong dan
toan ban » van 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 dieu) or (ho chieu)) tinh - manh tran van nhung ((cong dan) or (cong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (ho chieu)) tinh - manh tran van nhung ((cong dan) OR (cong thanh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (ho chieu)) tinh - manh tran van nhung ((cong dan) or (cong thanh)) toan ban*.