Perhaps you should try some spelling variations:
thu canh » thuc hanh, thu cong, thu ban
hanh hai » thanh hai, nhanh hai, hang hai
cua tre » cua te, cuu tre, cua triet
hai cua » thai cua, dai cua, hoi cua
nang xa » nang x, lang xa, nang ma
xa hanh » xa thanh, xa khanh, va hanh
tu can » tu ban, tu cac
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu can) OR (thu canh)) ky nang xa hoi. hieu ((ve cam) or (va cam)) tuc xa hanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu can) OR (thu canh)) ky nang xa hoi. hieu ((ve cam) OR (va cam)) tuc xa hanh hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu can) OR (thu canh)) ky nang xa hoi. hieu ((ve cam) or (va cam)) tuc xa hanh hai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu can) OR (thu canh)) ky nang xa hoi. hieu ((ve cam) or (va cam)) tuc xa hanh hai cua tre*.