Perhaps you should try some spelling variations:
cach truc » cach thuc, sach truc, cau truc
cua viet » ca viet, hoa viet, cua vat
va trien » va truyen, va thiet, va tuyen
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
cham xuc » cam xuc, chat xuc, cham soc
su cach » su sach, tu cach, su cac
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
xuc va » duc va, tuc va, luc va
nano o » nano cuo, nano mot, nano tio

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cach truc ((nano 1) OR (nano o)) ho. hieu ve cham xuc va thanh vi ((va trien) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cach truc ((nano 1) OR (nano o)) ho. hieu ve cham xuc va thanh vi ((va trien) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cach truc ((nano 1) OR (nano o)) ho. hieu ve cham xuc va thanh vi ((va trien) or (cua viet))".
• Adding a wildcard symbol may retrieve word variants: su cach truc ((nano 1) OR (nano o)) ho. hieu ve cham xuc va thanh vi ((va trien) or (cua viet))*.