Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
trang tuan » tran tuan, trung tuan, trong tuan
trang qua » trong qua, trong quan, trung quan
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
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: toc thieu sach - hanh ((trang qua) or (trang tuan)) dung cong manh ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sach - hanh ((trang qua) OR (trang tuan)) dung cong manh ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu sach - hanh ((trang qua) or (trang tuan)) dung cong manh ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: toc thieu sach - hanh ((trang qua) or (trang tuan)) dung cong manh ((toan cau) OR (toan ban))*.