Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
nhanh mang » nhanh lang, nhanh quang, nhanh thang
hanh mang » hanh trang, nhanh lang, thanh hang
hang cong » dang cong, hang nong, bang cong
tac thanh » bac thanh, cac thanh, tcc thanh
thanh hai » thanh phan, thanh hoa, thanh san
cong tac » cong ty
va hang » van hang, va nang, va lang

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) or (chiet tach)) - ((hanh mang) OR (nhanh mang)) va hang cong tac thanh hai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chiet tach)) - ((hanh mang) OR (nhanh mang)) va hang cong tac thanh hai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chiet tach)) - ((hanh mang) OR (nhanh mang)) va hang cong tac thanh hai".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chiet tach)) - ((hanh mang) OR (nhanh mang)) va hang cong tac thanh hai*.