Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » thong cong, hang cong, nhung don
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
san chay » san pham, van chat, dan chan
chay cao » cay cao, chat cao, nha cao

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 cua) or (tinh chat)) ((nhung cong) OR (dung cong)) san chay cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((trinh cua) OR (tinh chat)) ((nhung cong) OR (dung cong)) san chay cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh ((trinh cua) or (tinh chat)) ((nhung cong) OR (dung cong)) san chay cao".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((trinh cua) or (tinh chat)) ((nhung cong) OR (dung cong)) san chay cao*.