Perhaps you should try some spelling variations:
hoc trieu » hoc thieu, hoc tieu, hoc dieu
tang luan » dung luan
dung cong » dung trong
tang cua » mang cua, hang cua, thong cua
cong san » cong tac
san than » sang than, san thanh, ban 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: ((hoc trieu) or (hoc hien)) minh - hanh ((tang cua) OR (tang luan)) dung cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc trieu) OR (hoc hien)) minh - hanh ((tang cua) OR (tang luan)) dung cong san than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc trieu) or (hoc hien)) minh - hanh ((tang cua) OR (tang luan)) dung cong san than cap".
• Adding a wildcard symbol may retrieve word variants: ((hoc trieu) or (hoc hien)) minh - hanh ((tang cua) OR (tang luan)) dung cong san than cap*.