Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
cong van » cong vang, cong san, song van
tan cau » toan cau, van cau, tao cau
tan ca » tan cua, tang ca, dan ca

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 sach) or (hieu manh)) - hanh tranh cua trong cong van ((tan cau) or (tan ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (hieu manh)) - hanh tranh cua trong cong van ((tan cau) OR (tan ca)).
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (hieu manh)) - hanh tranh cua trong cong van ((tan cau) or (tan ca))*.