Perhaps you should try some spelling variations:
cuu cach » cuu cac, cuoc cach, cuu dac
cham xuc » cam xuc, chat xuc, cham soc
va triet » va thiet, va trien, ve triet
cua viet » ca viet, hoa viet, cua vat
tu nano » truc nano
nano 12 » nano 1, nao 12
ve cham » va cham, ve chat, vu cham
su sach » so sach, vu sach
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
xuc va » duc va, tuc va, luc va
12 h » 12 z, 1 h, 12 1

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((cuu cach) or (su sach)) tu nano 12 h. hieu ve cham xuc va hanh vi ((va triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((cuu cach) OR (su sach)) tu nano 12 h. hieu ve cham xuc va hanh vi ((va triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: ((cuu cach) or (su sach)) tu nano 12 h. hieu ve cham xuc va hanh vi ((va triet) or (cua viet))*.