Perhaps you should try some spelling variations:
hanh tran » hanh trang, thanh tran, hanh tram
van nhung » van nhuong, van hung, van phung
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
cong san » cong tac
than cau » toan cau, phan cau, than cap
khan ap » khan cap, han ap, khan dam

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - hanh tran ((van nhung) or (va nhung)) cong san ((than cau) or (khan ap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - hanh tran ((van nhung) OR (va nhung)) cong san ((than cau) OR (khan ap)).
• Adding a wildcard symbol may retrieve word variants: theo chu sach - hanh tran ((van nhung) or (va nhung)) cong san ((than cau) or (khan ap))*.