Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
ty nang » ky nang, ty xang, ty hang
cao hoi » cau hoi, cao hoc, tao hoi
hieu va » lieu va, hieu qua
tuc va » thuc va, truc va, tuc xa
va cam » va cham, va cac, va cao
xuc va » duc va, luc va, xac va
san ty » san tay, van ty
co hoi » co hoc, co loi
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat san ty nang ((cao hoi) OR (co hoi)). hieu va cam ((xuc va) or (tuc va)) hanh thai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ty nang ((cao hoi) OR (co hoi)). hieu va cam ((xuc va) OR (tuc va)) hanh thai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san ty nang ((cao hoi) OR (co hoi)). hieu va cam ((xuc va) or (tuc va)) hanh thai cua te".
• Adding a wildcard symbol may retrieve word variants: thuat san ty nang ((cao hoi) OR (co hoi)). hieu va cam ((xuc va) or (tuc va)) hanh thai cua te*.