Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
nhanh mang » nhanh lang, hanh mang, nhanh quang
nho hieu » nha hieu, nho sieu, nhu hieu
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
ho hieu » ho chieu, hoi hieu, co hieu
mang va » mang vua, hang va, bang va
dan van » dang van, doan van, dao van

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) OR (nho hieu)) qua - nhanh mang va thong cong dan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho hieu) OR (nho hieu)) qua - nhanh mang va thong cong dan van ban*".