Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong tinh » phuong trinh, phuong binh, khuong tinh
hanh trinh » canh tranh
theo chieu » theo tieu, ho chieu, thi chieu
luat nhung » luat chung, luat thuong, thuat nhung
tinh tuan » trinh tuan, tinh toan, minh tuan
theo chu » cho chu, chao chu, theo yeu
tuan cau » toan cau, quan cau, tuan cu

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

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