Perhaps you should try some spelling variations:
chiet tach » chieu sach
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung anh » truong anh, trang anh, trong anh
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
anh toan » manh toan, anh tuan, thanh 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 manh) or (chiet tach)) - canh tranh ((cua dung) OR (cua dang)) trung anh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chiet tach)) - canh tranh ((cua dung) OR (cua dang)) trung anh toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chiet tach)) - canh tranh ((cua dung) OR (cua dang)) trung anh toan cau*".