Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
tieu sang » chieu sang, tieu dung, tinh sang
tiem nang » tin nang, tich nang
luan tong » luan tuong, luan cong, luan dong
tong cong » trong cong, cong cong, dung cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 ((tieu sang) or (tiem nang)) - ((hanh trang) OR (hanh trinh)) luan tong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sang) OR (tiem nang)) - ((hanh trang) OR (hanh trinh)) luan tong cong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu sang) or (tiem nang)) - ((hanh trang) OR (hanh trinh)) luan tong cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sang) or (tiem nang)) - ((hanh trang) OR (hanh trinh)) luan tong cong tan toan cao*.