Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
thong cong » tong cong, thong thong, phong chong
chi sach » chinh sach, chieu sach, co sach
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - ((hanh trang) or (hanh trinh)) cua ((thong cong) or (trong cong)) dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - ((hanh trang) OR (hanh trinh)) cua ((thong cong) OR (trong cong)) dan chan cau.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - ((hanh trang) or (hanh trinh)) cua ((thong cong) or (trong cong)) dan chan cau*.