Perhaps you should try some spelling variations:
hang xuong » hang luong, hang thuong, hoang vuong
hanh trinh » canh tranh, hanh chinh
manh toan » thanh toan, anh tuan, tinh toan
van thanh » ban thanh, van tuan
chi sach » chinh sach, chieu sach, co sach
trinh va » trinh van, trinh vat, trinh ve
doi chi » doi khi
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: doi chi sach - hanh trinh va hang xuong ((manh toan) or (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - hanh trinh va hang xuong ((manh toan) OR (van thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - hanh trinh va hang xuong ((manh toan) or (van thanh)) cau*.