Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trung » thanh trung, hanh trang, manh trung
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
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 trung tuan ((hang cong) or (bang cong)) dan ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trung tuan ((hang cong) OR (bang cong)) dan ((toan ban) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trung tuan ((hang cong) or (bang cong)) dan ((toan ban) or (toan tap))*.