Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
doi chieu » doc hieu, doi chi, mot chieu
dang cong » dung cong
cong nang » cong ngang, cong lang, cong nong
nang phan » nang phat, nang thanh, nang quan
dung van » duong van, dung va, dang van
van dang » van dong, van dung, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) OR (toc thieu)) sach - thanh dung van dang cong nang phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (toc thieu)) sach - thanh dung van dang cong nang phan tu".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (toc thieu)) sach - thanh dung van dang cong nang phan tu*.