Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
hieu van » hieu va, thien van, lieu va
vai cua » dai cua, hai cua, lai cua
anh vai » anh va, anh bai, anh van
cao suc » cao su
cao duc » dao duc, giao duc, tao duoc
cua tre » cua te, cuu tre, cua triet
lanh y » anh y, hanh y, lanh lay
ma hoi » mai hoi, xa hoi, me hoi
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh y nang ((ma hoi) OR (ma hoa)). hieu van ((cao duc) or (cao suc)) tuan anh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh y nang ((ma hoi) OR (ma hoa)). hieu van ((cao duc) OR (cao suc)) tuan anh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh y nang ((ma hoi) OR (ma hoa)). hieu van ((cao duc) or (cao suc)) tuan anh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat lanh y nang ((ma hoi) OR (ma hoa)). hieu van ((cao duc) or (cao suc)) tuan anh vai cua tre*.