Perhaps you should try some spelling variations:
phuong doan » phuong loan, phuong hoang, huong dan
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
phuong dan » phuong danh, huong dan, phuong lan
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
than tap » toan tap, han tap, phan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh tranh ((cua dung) OR (qua dung)) ((phuong dan) OR (phuong doan)) than tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - hanh tranh ((cua dung) OR (qua dung)) ((phuong dan) or (phuong doan)) than tap~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh tranh ((cua dung) OR (qua dung)) ((phuong dan) or (phuong doan)) than tap*.