Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
phung cong » nhung cong, phong cong, nhung chong
hoc chieu » hoc thieu, ho chieu, hoc hien
cong than » cong thanh, cong thang, cong tan
than phan » thanh phan, toan phan, thanh pham
thang va » hang va, trang va, thanh va
thong va » thong cua, truong va, thong qua
phan cac » nhan cach, phan dau, phan lap

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 ((thang va) or (thong va)) phung cong than phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - nhanh ((thang va) OR (thong va)) phung cong than phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - nhanh ((thang va) or (thong va)) phung cong than phan cac*.