Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung dung » phuong dung, ung dung, thong dung
nhung cong » dung cong, thong cong, hang cong
manh tinh » man tinh, manh binh, canh tinh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
ho chieu » theo chieu, hoc thieu, doi chieu
dan chan » dan gian, dan ca, van chat
chan tu » phan tu, han tu, chon tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - ((manh tinh) or (hanh tinh)) va ((nhung dung) or (nhung cong)) dan chan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((manh tinh) OR (hanh tinh)) va ((nhung dung) OR (nhung cong)) dan chan tu.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((manh tinh) or (hanh tinh)) va ((nhung dung) or (nhung cong)) dan chan tu*.