Perhaps you should try some spelling variations:
thanh chong » thanh chuong, thanh cong, nhanh chong
thieu hach » thien hach, chieu sach, hieu cach
chong gian » khong gian, thong giao, phong giao
gian dan » gian lang
dan cong » dang cong, van cong, dan dong
cong dan » cong san, cong tan, huong dan
phan van » pham van, thanh van, luan van
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu hach - thanh chong gian dan cong dan ((phan van) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu hach - thanh chong gian dan cong dan ((phan van) OR (phan dau))*.