Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trang » thanh trung, canh tranh, hanh trinh
cuu phuong » thu phuong
cac phuong » cac truong
hoc thieu » toc thieu, hoc hien
cong tac » cong ty
toan cao » toan ban, toan tap
can cau » van cau, ban cau, ca cau

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 ((cuu phuong) OR (cac phuong)) cong tac ((toan cao) or (can cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trang ((cuu phuong) OR (cac phuong)) cong tac ((toan cao) OR (can cau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - hanh trang ((cuu phuong) OR (cac phuong)) cong tac ((toan cao) or (can cau))*".