Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
quang phan » quang chan, quang phat, quang thanh
doi chieu » doc hieu, doi chi, mot chieu
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, mot chieu
hanh van » thanh van, khanh van, hanh va
phan cac » nhan cach, phan dau, phan lap
van qua » van quan, van quy, van cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (doi chieu)) sach - hanh van qua ((nhung cong) or (hang cong)) quang phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - hanh van qua ((nhung cong) OR (hang cong)) quang phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sach - hanh van qua ((nhung cong) or (hang cong)) quang phan cac".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sach - hanh van qua ((nhung cong) or (hang cong)) quang phan cac*.