Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, nhung don
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh vit » trinh viet, trinh vat, trinh vuot
hang cong » dang cong, hang nong, bang cong
trinh vi » trinh va, trinh ve, trinh viet
ban han » ban hang, ban hanh, ban than
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - hanh ((trinh vi) or (trinh vit)) ((nhung cong) or (hang cong)) ban han tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((trinh vi) OR (trinh vit)) ((nhung cong) OR (hang cong)) ban han tap.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((trinh vi) or (trinh vit)) ((nhung cong) or (hang cong)) ban han tap*.