Perhaps you should try some spelling variations:
han phuong » van phuong, dan phuong, han thuong
hanh trinh » canh tranh, hanh chinh
phuong dan » phuong danh, phuong doan, huong dan
tieu xanh » tieu danh, chieu xanh, tien anh
luat han » luat hanh, luat dan, luan han
dan toan » van toan, dan than, 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: theo ((tieu xanh) or (dieu hanh)) - hanh trinh luat han phuong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (dieu hanh)) - hanh trinh luat han phuong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (dieu hanh)) - hanh trinh luat han phuong dan toan ban*.