Perhaps you should try some spelling variations:
thu canh » thuc hanh, thu cong, thu ban
ban quan » van quan
canh ky » hanh ky, canh tay, nganh ky
hai cua » thai cua, dai cua, hoi cua
va hanh » van hanh, va thanh, va danh
cac tac » cac toc, cac bac, cac dac
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
tac va » tac da, tac xa, tuc va

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

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