Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trinh vatn » trinh van, trinh han, trinh san
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh vat » trinh van, trinh luat, sinh vat
cong lang » cong vang, cong luong, cong quang
lang toan » dang toan, lang thang, lang thanh
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 chieu sach - hanh ((trinh vat) or (trinh vatn)) nhung cong lang toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((trinh vat) OR (trinh vatn)) nhung cong lang toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((trinh vat) or (trinh vatn)) nhung cong lang toan cau*.