Perhaps you should try some spelling variations:
hoc chieu » hoc thieu, ho chieu, hoc dieu
hanh tram » hanh tam, hanh trang, thanh tran
dung cong » dung trong
cong nang » cong ngang, cong lang, cong nong
nang van » dang van, tang van, lang van
va dung » van dung, va duong, vat dung
van cau » van dau, van hau, van chat

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 - ((hanh tram) or (canh tranh)) va dung cong nang van cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sach - ((hanh tram) OR (canh tranh)) va dung cong nang van cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc hien)) sach - ((hanh tram) or (canh tranh)) va dung cong nang van cau*.