Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu sach » chinh sach, chiet tach, chieu sang
hieu lang » chieu sang, hieu quang, nhieu tang
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
trinh su » trinh tu, trinh san, trinh cau
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: nhu ((((hieu lang) or (hieu qua))) or (chieu sach)) - hanh trinh su dung cong manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nhu ((((hieu lang) OR (hieu qua))) OR (chieu sach)) - hanh trinh su dung cong manh toan tap.
• Adding a wildcard symbol may retrieve word variants: nhu ((((hieu lang) or (hieu qua))) or (chieu sach)) - hanh trinh su dung cong manh toan tap*.