Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong tinh » phuong trinh, phuong binh, khuong tinh
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » canh tranh, hanh trinh, minh trang
thanh tung » thanh cong
toan cau » toan cao, toan ban, toan tap

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 xanh - ((((hanh trang) OR (thanh trung))) or (thanh tung)) va nhung phuong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((((hanh trang) OR (thanh trung))) OR (thanh tung)) va nhung phuong tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((((hanh trang) OR (thanh trung))) or (thanh tung)) va nhung phuong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((((hanh trang) OR (thanh trung))) or (thanh tung)) va nhung phuong tinh toan cau*.