Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
nhung cong » dung cong, thong cong, hang cong
tung tuan » trung tuan, hung tuan, trang tuan
hoc sach » hoc sinh, hoc cac, hoc anh
cong sat » cong suat, cong san, cong hat
sat phan » sat nhan, vat phan, xuat phan
phan cau » phan dau, phan cac, phan tu
co sach » bo sach, cuon sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: moi ((co sach) or (hoc sach)) - thanh ((tung tuan) OR (quang tuan)) nhung cong sat phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: moi ((co sach) OR (hoc sach)) - thanh ((tung tuan) OR (quang tuan)) nhung cong sat phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "moi ((co sach) or (hoc sach)) - thanh ((tung tuan) OR (quang tuan)) nhung cong sat phan cau".
• Adding a wildcard symbol may retrieve word variants: moi ((co sach) or (hoc sach)) - thanh ((tung tuan) OR (quang tuan)) nhung cong sat phan cau*.