Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
trinh quan » tinh quang, trinh luat, trinh han
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh luan
hang cong » dang cong, hang nong, bang cong
van thanh » ban thanh
van tuan » van quan, van ban, anh tuan

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 ((trinh cua) or (trinh quan)) hang cong ((van thanh) or (van tuan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh ((trinh cua) OR (trinh quan)) hang cong ((van thanh) OR (van tuan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh ((trinh cua) or (trinh quan)) hang cong ((van thanh) or (van tuan)) tap*.