Perhaps you should try some spelling variations:
thanh tay » thanh tai, thanh toan, thanh thuy
bach ky » bac ky
hieu va » lieu va, hieu qua
thuc va » thuc dan, thuc day
tay cua » day cua, ty cua
nang o » nang co, nang ho, nang ro
va cao » va cac, va co, va dao
cua te » cua tu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ky nang o hoi. hieu va cao ((thuc va) OR (thuc vat)) thanh tay cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu bach ky nang o hoi. hieu va cao ((thuc va) OR (thuc vat)) thanh tay cua te".
• Adding a wildcard symbol may retrieve word variants: vu bach ky nang o hoi. hieu va cao ((thuc va) OR (thuc vat)) thanh tay cua te*.