Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
doi chieu » doc hieu, doi chi, mot chieu
hanh mang » nhanh mang, hanh trang, thanh hang
cua thong » cua thuong, cua khong, cua tong
thong tac » thong cac, tuong tac, thong tai
ho chieu » theo chieu, hoc thieu, mot chieu
tac than » tac thanh, tam than, tac nhan
than ban » thanh ban, toan ban, than man

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 mang) or (nhanh lang)) cua thong thong tac than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - ((hanh mang) OR (nhanh lang)) cua thong thong tac than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sach - ((hanh mang) or (nhanh lang)) cua thong thong tac than ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sach - ((hanh mang) or (nhanh lang)) cua thong thong tac than ban*.