Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hanh tran » hanh trang, thanh tran, hanh tram
quy trong » luy trong, thuy trong, quy trinh
doc hieu » toc thieu, hoc hien
tran quy » tran duy, tran quoc, tran thuy
cong dan » cong san, cong tan, cong dong
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) OR (hoc thieu)) tinh - hanh tran quy trong ((cong dan) or (huong dan)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) tinh - hanh tran quy trong ((cong dan) OR (huong dan)) than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc thieu)) tinh - hanh tran quy trong ((cong dan) or (huong dan)) than cap".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (hoc thieu)) tinh - hanh tran quy trong ((cong dan) or (huong dan)) than cap*.