Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
lanh ban » lanh bang, lang ban, doanh ban
san toan » dan toan, manh toan, xuan toan
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan
ban cua » ban quan

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 - lanh ban cua nhung cong ((san toan) or (((van toan) OR (van tuan)))) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - lanh ban cua nhung cong ((san toan) OR (((van toan) OR (van tuan)))) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - lanh ban cua nhung cong ((san toan) or (((van toan) OR (van tuan)))) cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - lanh ban cua nhung cong ((san toan) or (((van toan) OR (van tuan)))) cau*.