Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
trinh cua » tinh cua, trinh quan, trinh luan
dung cong » dung trong
hoc tien » hoc tieng, hoc hien, hoc vien
tien anh » tieng anh, tien manh, dien anh
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: hoc tien anh - hanh ((trinh cua) or (trinh luat)) ((nhung cong) OR (dung cong)) dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien anh - hanh ((trinh cua) OR (trinh luat)) ((nhung cong) OR (dung cong)) dan than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc tien anh - hanh ((trinh cua) or (trinh luat)) ((nhung cong) OR (dung cong)) dan than cap".
• Adding a wildcard symbol may retrieve word variants: hoc tien anh - hanh ((trinh cua) or (trinh luat)) ((nhung cong) OR (dung cong)) dan than cap*.