Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc trieu » hoc thieu, hoc dieu, hoc thiet
hanh tran » hanh trang, thanh tran, hanh tram
van nhung » van nhuong, va nhung, van hung
thanh bac » nhanh bac, thanh bai, thanh hai
hoc tieu » hoc thieu, hoc dieu, hoc sieu
tran van » luan van
cong ban » cong bang, cong san, cong tan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc trieu) or (hoc tieu)) tinh - hanh tran van nhung cong ban ((thanh bac) OR (thanh san))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc trieu) OR (hoc tieu)) tinh - hanh tran van nhung cong ban ((thanh bac) OR (thanh san)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc trieu) or (hoc tieu)) tinh - hanh tran van nhung cong ban ((thanh bac) OR (thanh san))".
• Adding a wildcard symbol may retrieve word variants: ((hoc trieu) or (hoc tieu)) tinh - hanh tran van nhung cong ban ((thanh bac) OR (thanh san))*.