Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
hoc chieu » hoc thieu, ho chieu, hoc dieu
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
cong van » cong vang, cong san, song van
van chat » cao chat
chat ban » nhat ban, chat ran, cua 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 - thanh dung ((cua thong) OR (cua khong)) cong van chat ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sach - thanh dung ((cua thong) OR (cua khong)) cong van chat ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (hoc hien)) sach - thanh dung ((cua thong) OR (cua khong)) cong van chat ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc hien)) sach - thanh dung ((cua thong) OR (cua khong)) cong van chat ban*.