Perhaps you should try some spelling variations:
thuong va » truong va, thong va, thuong mai
thuoc va » thuc va, thuoc ma, thuoc tai
tinh dai » trinh dai, tinh da, tinh hai
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
cua tre » cua te, cuu tre, cua triet
va lam » van lam, va lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ((ky lang) OR (ky dang)) xa hoi. lieu va lam ((thuoc va) or (thuong va)) tinh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ((ky lang) OR (ky dang)) xa hoi. lieu va lam ((thuoc va) OR (thuong va)) tinh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ((ky lang) OR (ky dang)) xa hoi. lieu va lam ((thuoc va) or (thuong va)) tinh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu cac ((ky lang) OR (ky dang)) xa hoi. lieu va lam ((thuoc va) or (thuong va)) tinh dai cua tre*.