Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
luat nhung » luat chung, thuat nhung, cua nhung
lieu tinh » trieu tinh, diep tinh, bien tinh
duong ban » duong van, dong ban, duong san
ban thanh » ban hanh, ban hang
thanh cao » thanh ca, thanh cac, thanh thao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (lieu tinh)) - hanh trinh ((luat nhung) OR (luat thuong)) duong ban thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (lieu tinh)) - hanh trinh ((luat nhung) OR (luat thuong)) duong ban thanh cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (lieu tinh)) - hanh trinh ((luat nhung) OR (luat thuong)) duong ban thanh cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (lieu tinh)) - hanh trinh ((luat nhung) OR (luat thuong)) duong ban thanh cao*.