Perhaps you should try some spelling variations:
danh thanh » dinh thanh, dang thanh, nhanh thanh
theo tiem » theo tieu, them niem, thep tieu
tiem nang » tin nang, tich nang
tong cong » trong cong, cong cong, dung cong
dan thanh » dang thanh, ban thanh, van thanh
trang va » hang va
tran van » luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tiem nang - hanh ((trang va) or (tran van)) tong cong ((dan thanh) OR (danh thanh)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tiem nang - hanh ((trang va) OR (tran van)) tong cong ((dan thanh) OR (danh thanh)) cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tiem nang - hanh ((trang va) or (tran van)) tong cong ((dan thanh) OR (danh thanh)) cac".
• Adding a wildcard symbol may retrieve word variants: theo tiem nang - hanh ((trang va) or (tran van)) tong cong ((dan thanh) OR (danh thanh)) cac*.