Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
hoc chiet » hoc thiet, hoc nhiet, hoc hien
tranh cua » manh cua
doanh cua » doanh luan
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, toan 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 chiet tach - canh ((tranh cua) OR (doanh cua)) nhung cong tan tran ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chiet tach - canh ((tranh cua) OR (doanh cua)) nhung cong tan tran ban".
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - canh ((tranh cua) OR (doanh cua)) nhung cong tan tran ban*.