Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
hang hang » nang hang, cang thang, hung thang
va phuong » va thuong, cac phuong
cong dan » cong tan, cong dong, cong tac
cong san » cong tac
than cau » toan cau, phan cau, than cap

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 - hang hang va phuong ((((cong dan) OR (cong san))) or (huong dan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hang hang va phuong ((((cong dan) OR (cong san))) OR (huong dan)) than cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - hang hang va phuong ((((cong dan) OR (cong san))) or (huong dan)) than cau*".