Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong nang » cong ngang, cong lang, cong nong
quan dau » qua dau, quan dac, quan doan
quan cau » quang cao, toan cau, quan ha

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

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