Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
cuong tap » luong tap, cong tac, luong tai
cua hang » cua dang, cua nhung, cua cong
cong tap » cong tac, cong tan, tong tap
toan tap » 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 thieu) or (theo tieu)) sach - hanh trinh cua hang ((cong tap) OR (cuong tap)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo tieu)) sach - hanh trinh cua hang ((cong tap) OR (cuong tap)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (theo tieu)) sach - hanh trinh cua hang ((cong tap) OR (cuong tap)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo tieu)) sach - hanh trinh cua hang ((cong tap) OR (cuong tap)) toan tap*.