Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu sang » chieu sang, tieu dung, tinh sang
tiem nang » tin nang, tich nang
dang vatn » dang van, dong vat, tang van
roman cau » toan cau, ran cau
dang vat » dang van, dong vat, dang nhat
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu sang) OR (tiem nang)) - anh ((dang vat) or (dang vatn)) nhung cong san roman cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sang) OR (tiem nang)) - anh ((dang vat) OR (dang vatn)) nhung cong san roman cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu sang) OR (tiem nang)) - anh ((dang vat) or (dang vatn)) nhung cong san roman cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sang) OR (tiem nang)) - anh ((dang vat) or (dang vatn)) nhung cong san roman cau*.