Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
theo chieu » theo tieu, ho chieu, theo chu
phuong van » phung van, phong van, phuong lan
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua dung » cua dang, cua dong, qua dung
van chat » cao chat
van cau » van dau, van hau, toan cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (theo chieu)) xanh - canh tranh cua dung phuong van ((van cau) OR (van chat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chieu)) xanh - canh tranh cua dung phuong van ((van cau) OR (van chat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (theo chieu)) xanh - canh tranh cua dung phuong van ((van cau) OR (van chat))".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chieu)) xanh - canh tranh cua dung phuong van ((van cau) OR (van chat))*.