Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
y nang » ky nang, ly nang, v nang
va cau » van cau, va cac, va dau
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat san) OR (tu sach)) y nang ((x hoi) OR (o hoi)). lieu va cau truc va hanh tai cua vat~.
• Adding a wildcard symbol may retrieve word variants: ((thuat san) or (tu sach)) y nang ((x hoi) or (o hoi)). lieu va cau truc va hanh tai cua vat*.