Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
chua nang » chuc nang, chua xang, kha nang
ngang van » ngan van, nang van, hoang van
cua nang » cua dang, cua hang, cua nong
nhan van » nhan dan, nhan va, phan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - canh tranh ((cua nang) OR (chua nang)) cong ((ngang van) or (nhan van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh tranh ((cua nang) OR (chua nang)) cong ((ngang van) OR (nhan van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - canh tranh ((cua nang) OR (chua nang)) cong ((ngang van) or (nhan van)) ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh tranh ((cua nang) OR (chua nang)) cong ((ngang van) or (nhan van)) ban*.