Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hanh hang » thanh hang, hang hang, hanh han
cua trong » cua truong, cua trung, qua trong
doc hieu » toc thieu, hoc hien
hang cua » mang cua, hang ca, huong cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
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 hang cua trong cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) tinh - hanh hang cua trong cong dan than cap.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) tinh - hanh hang cua trong cong dan than cap*.