Perhaps you should try some spelling variations:
canh trinh » canh tranh, canh tinh, anh trinh
chieu sang » chieu sach, chieu xanh, nhieu tang
hanh trinh » canh tranh, hanh chinh
nhung dung » phuong dung, ung dung, thong dung
hieu lang » hieu quang, nhieu tang, hieu van
van nhung » van nhuong, va nhung, van hung
dung manh » duong manh, dung danh, hung manh
manh toan » thanh toan, anh tuan, tinh 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: ho ((hieu lang) or (chieu sang)) - ((canh trinh) OR (hanh trinh)) van nhung dung manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - ((canh trinh) OR (hanh trinh)) van nhung dung manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chieu sang)) - ((canh trinh) OR (hanh trinh)) van nhung dung manh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sang)) - ((canh trinh) OR (hanh trinh)) van nhung dung manh toan cau*.