Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
tranh tuan » tran tuan, tranh luan, trang tuan
thanh tuan » thanh toan, thanh xuan, thanh thanh
hoc thieu » toc thieu, hoc hien
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan ban » doanh ban, toan ban, doan van

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 - canh ((tranh tuan) OR (thanh tuan)) trong cong tap doan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - canh ((tranh tuan) OR (thanh tuan)) trong cong tap doan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - canh ((tranh tuan) OR (thanh tuan)) trong cong tap doan ban*.