Perhaps you should try some spelling variations:
hoc thieu » toc thieu
hanh dung » thanh dung, anh dung, hanh dong
cho nhung » cho chuong, cua nhung, cho hang
thi nhung » thi nang, thi hong, thi huong
cong dan » cong san, cong tan, huong dan
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: ((hoc thieu) or (hoc hien)) sach - hanh dung ((cho nhung) OR (thi nhung)) cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) sach - hanh dung ((cho nhung) OR (thi nhung)) cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (hoc hien)) sach - hanh dung ((cho nhung) OR (thi nhung)) cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) sach - hanh dung ((cho nhung) OR (thi nhung)) cong dan toan cau*.