Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
hanh tranh » canh tranh, hanh trang, lanh tranh
theo chieu » theo tieu, ho chieu, thi chieu
hanh trinh » canh tranh, hanh chinh
phuong dan » phuong danh, phuong doan, huong dan
theo chu » cho chu, chao chu, theo yeu
qua dung » quang dung, su dung, qua song
dan chan » dan gian, dan ca, van chat
chan tap » han tap, phan tap, chan ta

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