Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
hanh cac » hang cac, hanh cat, nhanh cay
cac cua » cach cua, cac qua, ca cua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van nang
luc va » duc va, tuc va, loc va
y nang » ky nang, ly nang, may nang
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

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 ((y nang) OR (v nang)) x hoi. hieu ((ve cam) or (va cac)) luc va hanh cac cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ((y nang) OR (v nang)) x hoi. hieu ((ve cam) OR (va cac)) luc va hanh cac cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san ((y nang) OR (v nang)) x hoi. hieu ((ve cam) or (va cac)) luc va hanh cac cua tre*".