Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hanh sinh » hanh tinh, hanh dinh, hinh sinh
cua trong » cua truong, cua trung, qua trong
sinh cua » manh cua, dinh cuu, sinh va
cong tan » cong tac, cong san, cong thanh
tan quan » tang quan, toan quan, van quan
quan ban » quang ban, qua ban, quan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((dieu hanh) or (hieu lang)) - hanh sinh cua trong cong tan quan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu hanh) OR (hieu lang)) - hanh sinh cua trong cong tan quan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (hieu lang)) - hanh sinh cua trong cong tan quan ban*.