Perhaps you should try some spelling variations:
phuong thao » phuong phap, phuong thuc
hanh trang » thanh trung, canh tranh, hanh trinh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tang » anh tang, hanh mang, hanh tung
thao toan » thuat toan, thanh toan, tap toan
ho chieu » theo chieu, hoc thieu, doi chieu
van dung » van dong, xay dung, tin dung
toan cau » toan cao, toan ban, toan tap
va dung » va duong, vat dung, va ung

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: ho chieu xanh - ((hanh tang) OR (hanh trang)) ((va dung) OR (van dung)) phuong thao toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((hanh tang) or (hanh trang)) ((va dung) OR (van dung)) phuong thao toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((hanh tang) or (hanh trang)) ((va dung) OR (van dung)) phuong thao toan cau*.