Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
chieu sach » chinh sach, chiet tach, chieu sang
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
tung cua » trung cua, tuong cua, tang cua
dung cua » dung luan, dung cho
van tan » van tuan, van ban, van tai

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 sach - thanh ((tung cua) OR (dung cua)) nhung chong ((manh toan) or (van tan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((tung cua) OR (dung cua)) nhung chong ((manh toan) OR (van tan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((tung cua) OR (dung cua)) nhung chong ((manh toan) or (van tan)) cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((tung cua) OR (dung cua)) nhung chong ((manh toan) or (van tan)) cao*.