Perhaps you should try some spelling variations:
chat thuc » thuat thuc, nhan thuc, chat thai
hieu cao » chieu cao, hieu cac, hieu ca
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
vai cua » hai cua, bai cua, mai cua
lai cua » hai cua, lai chau, thai cua
tu can » tu ban, tu cac, thu canh
can ky » van ky, dan ky, ban ky

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 ky nang xa hoi. hieu cao chat thuc va doc ((vai cua) or (((lai cua) OR (dai cua)))) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ky nang xa hoi. hieu cao chat thuc va doc ((vai cua) OR (((lai cua) OR (dai cua)))) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ky nang xa hoi. hieu cao chat thuc va doc ((vai cua) or (((lai cua) OR (dai cua)))) tre".
• Adding a wildcard symbol may retrieve word variants: tu can ky nang xa hoi. hieu cao chat thuc va doc ((vai cua) or (((lai cua) OR (dai cua)))) tre*.