Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh vat » trinh luat, sinh vat, trinh han
trinh van » trinh han, trinh quan, trinh toan
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
tinh va » tich va, tinh gia, sinh vat

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 - nhanh ((((tinh va) or (trinh vat))) or (trinh van)) nhung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - nhanh ((((tinh va) OR (trinh vat))) OR (trinh van)) nhung cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - nhanh ((((tinh va) or (trinh vat))) or (trinh van)) nhung cong dan toan cao*.