Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hanh tran » hanh trang, thanh tran, hanh tram
theo chu » theo chieu, cho chu, chao chu
tran van » luan van
van dang » van dong, van dung, van nang
cong dan » cong san, cong tan, cong dong
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 thieu) or (theo chu)) xanh - hanh tran van dang ((cong dan) OR (huong dan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) xanh - hanh tran van dang ((cong dan) OR (huong dan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (theo chu)) xanh - hanh tran van dang ((cong dan) OR (huong dan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) xanh - hanh tran van dang ((cong dan) OR (huong dan)) toan ban*.