Perhaps you should try some spelling variations:
hoc nhieu » hoc thieu, hoc nhiet, hoc nghien
hop nhieu » hoc thieu, ho chieu, he nhieu
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
tran manh » tran minh, tran thanh, tran van
tang qua » tang quan, tang cua, tang quy
qua dung » quang dung, su dung, qua song
cong dan » cong san, cong tan, huong dan
than man » than ma, thanh san, than phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc nhieu) or (hop nhieu)) tang - hanh tang qua dung cong dan ((than man) OR (tran manh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc nhieu) OR (hop nhieu)) tang - hanh tang qua dung cong dan ((than man) OR (tran manh)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc nhieu) or (hop nhieu)) tang - hanh tang qua dung cong dan ((than man) OR (tran manh))".
• Adding a wildcard symbol may retrieve word variants: ((hoc nhieu) or (hop nhieu)) tang - hanh tang qua dung cong dan ((than man) OR (tran manh))*.