Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
quan phan » quang phan, luan phan, quan phap
quan pham » tuan pham, quan phap, quang phat
qua phan » cua phan, qua than, quang phan
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - hanh trinh ((((quan phan) or (quan pham))) or (qua phan)) cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trinh ((((quan phan) OR (quan pham))) OR (qua phan)) cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trinh ((((quan phan) or (quan pham))) or (qua phan)) cong san toan ban*.