Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, ho chieu, mot chieu
luat dang » luat dan, luat danh, luat doanh
cong vong » cong dong, cong cong, cong vang
cong nong » cong dong, cong cong, cong trong
toan cau » toan cao, toan ban, toan tap
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 chieu) or (doi chi)) sach - hanh trinh luat dang ((cong vong) OR (cong nong)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) sach - hanh trinh luat dang ((cong vong) OR (cong nong)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (doi chi)) sach - hanh trinh luat dang ((cong vong) OR (cong nong)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi chi)) sach - hanh trinh luat dang ((cong vong) OR (cong nong)) toan cau*.