Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trang » thanh trung, hanh trinh, minh trang
nhung cung » nhung cong, nhung dung, nhung cang
hoc thieu » toc thieu, hoc hien
cung bai » cuong bai, dung bai, nhung bai
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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 sach - ((hanh trang) or (canh tranh)) va nhung cung bai ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - ((hanh trang) OR (canh tranh)) va nhung cung bai ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - ((hanh trang) or (canh tranh)) va nhung cung bai ((toan cau) or (toan ban))*.