Perhaps you should try some spelling variations:
mot chieu » doi chieu, ho chieu
tuong dan » huong dan, tung dan, xuong dan
tac doanh » cac doanh, tac danh, toan doanh
doc hieu » toc thieu, hoc thieu, hoc hien
tung dap » tung dan, trung dai, tuong dao
ung cong » dung cong, luong cong, duong cong
cong tac » cong ty

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (mot chieu)) sach - thanh ((tung dap) OR (tuong dan)) ung cong tac doanh tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (mot chieu)) sach - thanh ((tung dap) OR (tuong dan)) ung cong tac doanh tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (mot chieu)) sach - thanh ((tung dap) OR (tuong dan)) ung cong tac doanh tai".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (mot chieu)) sach - thanh ((tung dap) OR (tuong dan)) ung cong tac doanh tai*.