Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
hanh trinh » canh tranh, hanh chinh
cong ngang » cong nhan, cong quang, cong lang
hoc thieu » toc thieu, hoc hien
cong vang » cong lang, cong quang, cong san
cong van » cong san, song van, cong tan
than man » than ma, thanh san, tran manh
luat » luan, xuat

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 tach - hanh trinh luat thuong ((cong van) or (((cong vang) OR (cong ngang)))) than man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tach - hanh trinh luat thuong ((cong van) OR (((cong vang) OR (cong ngang)))) than man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tach - hanh trinh luat thuong ((cong van) or (((cong vang) OR (cong ngang)))) than man".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tach - hanh trinh luat thuong ((cong van) or (((cong vang) OR (cong ngang)))) than man*.