Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
cham xuc » cam xuc, chat xuc, cham soc
tinh su » trinh su, hinh su, tinh tu
va tinh » may tinh
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
xuc va » duc va, tuc va, luc va
tu cau » tu cac, cu cau, tu cay
tu can » tu ban, tu cac, thu canh
su va » su van, tu va
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cau) or (tu can)) truc nano ((5 hoi) or (o hoi)). hieu vu cham xuc va tinh su va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cau) OR (tu can)) truc nano ((5 hoi) OR (o hoi)). hieu vu cham xuc va tinh su va triet.
• Adding a wildcard symbol may retrieve word variants: ((tu cau) or (tu can)) truc nano ((5 hoi) or (o hoi)). hieu vu cham xuc va tinh su va triet*.