Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
lai cua » hai cua, lai chau, thai cua
tu can » tu cac, thu canh
tu ban » thu ban, te ban
va am » va lam, va cam

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 (tu ban)) ky nang xa hoi. hieu va am thuc dan hanh ((lai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu can) OR (tu ban)) ky nang xa hoi. hieu va am thuc dan hanh ((lai cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: ((tu can) or (tu ban)) ky nang xa hoi. hieu va am thuc dan hanh ((lai cua) or (dai cua)) tre*.