Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
chieu tach » chiet tach, chieu sach, chiu trach
hanh thang » nhanh thang, hanh trang, danh thang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
san thanh » ban thanh, van thanh, son thanh
san than » sang than, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tach - ((hanh thang) or (thanh thang)) va nhung cong ((san than) OR (san thanh)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tach - ((hanh thang) OR (thanh thang)) va nhung cong ((san than) OR (san thanh)) cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tach - ((hanh thang) or (thanh thang)) va nhung cong ((san than) OR (san thanh)) cap".
• Adding a wildcard symbol may retrieve word variants: doi chieu tach - ((hanh thang) or (thanh thang)) va nhung cong ((san than) OR (san thanh)) cap*.