Perhaps you should try some spelling variations:
phuong thao » phuong phap, phuong thuc
cong phuong » cong thuong, cong huong, dong phuong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trang » thanh trung, hanh trinh, minh trang
hoc chieu » hoc thieu, ho chieu, hoc hien
thao toan » thuat toan, thanh toan, tap toan
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: hoc chieu sang - ((hanh trang) OR (canh tranh)) cua cong phuong thao toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sang - ((hanh trang) OR (canh tranh)) cua cong phuong thao toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - ((hanh trang) OR (canh tranh)) cua cong phuong thao toan cau*.