Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
cuong dung » tuong duong, ung dung, thong dung
hoc chieu » hoc thieu, ho chieu, hoc dieu
manh tinh » man tinh, manh binh, canh tinh
dung cong » dung trong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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 chieu) OR (hoc hien)) sach - ((manh tinh) or (hanh trinh)) cuong dung cong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sach - ((manh tinh) OR (hanh trinh)) cuong dung cong van toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc hien)) sach - ((manh tinh) or (hanh trinh)) cuong dung cong van toan tap".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc hien)) sach - ((manh tinh) or (hanh trinh)) cuong dung cong van toan tap*.