Perhaps you should try some spelling variations:
nhanh thanh » phan thanh, nhanh tinh
chieu sang » chieu sach, chieu xanh, nhieu tang
chiet tach » chieu sach
hieu lang » hieu quang, nhieu tang, hieu van
dung cong » dung trong
thanh vi » hanh vi, thanh va, thanh ve
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
vi dung » va dung, vi ung, vi dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((hieu lang) or (chieu sang))) or (chiet tach)) - nhanh thanh vi dung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu lang) OR (chieu sang))) OR (chiet tach)) - nhanh thanh vi dung cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu lang) or (chieu sang))) or (chiet tach)) - nhanh thanh vi dung cong dan toan ban*.