Perhaps you should try some spelling variations:
tranh nhung » trinh nhung, tranh hang, tran hung
tran tranh » tran thanh, trang trinh, trong tranh
nhung cong » dung cong, thong cong, hang cong
hanh tran » hanh trang, thanh tran, hanh tram
hoc hieu » hoc thieu, doc hieu, hoc dieu
cong san » cong tac
tuan cao » juan cao, quang cao, thuan cam
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc hien)) manh - hanh tran tranh nhung cong san ((tuan cao) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hieu) OR (hoc hien)) manh - hanh tran tranh nhung cong san ((tuan cao) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) OR (hoc hien)) manh - hanh tran tranh nhung cong san ((tuan cao) or (toan cao))*.