Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhanh hang » nhanh thang, nhanh lang, thanh hang
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
hang cua » mang cua, hang ca, huong cua
dan than » dan chan, 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: theo chieu sach - nhanh hang cua nhung cong ((manh toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - nhanh hang cua nhung cong ((manh toan) OR (dan than)) cau*.