Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cuu thuc » cuu tac
nang xa » nang x, lang xa, nang ma
van cuu » van cau, van chu, van cu
vat dan » va dan, van dan, vat ran
tu ban » thu ban, te ban
ban ky » van ky, dan ky
di cua » dai cua, doi cua, de cua
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ban ky nang xa hoi. hieu van cuu thuc vat dan ((di cua) or (le cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ban ky nang xa hoi. hieu van cuu thuc vat dan ((di cua) OR (le cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu ban ky nang xa hoi. hieu van cuu thuc vat dan ((di cua) or (le cua)) tre*.