Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
dung cong » dung trong
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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 - ((hanh dung) OR (hanh dong)) cua ((thong cong) or (dung cong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh dung) OR (hanh dong)) cua ((thong cong) OR (dung cong)) dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((hanh dung) OR (hanh dong)) cua ((thong cong) or (dung cong)) dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((hanh dung) OR (hanh dong)) cua ((thong cong) or (dung cong)) dan toan cau*.