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
doc hieu » toc thieu, hoc thieu
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

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