Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
chua tre » chua tri, cua tre, chua trieu
hoc cac » hoc cao
nang co » nang cao, nang doc, nang noi
hieu ve » hieu van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va chua » vua chua, ca chua, va chu
thu va » thue va, tu va, thu ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc cac ky nang co hoc. ((hieu ve) or (hieu va)) nam ((thu va) OR (thuc va)) thanh va chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc cac ky nang co hoc. ((hieu ve) OR (hieu va)) nam ((thu va) OR (thuc va)) thanh va chua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc cac ky nang co hoc. ((hieu ve) or (hieu va)) nam ((thu va) OR (thuc va)) thanh va chua tre".
• Adding a wildcard symbol may retrieve word variants: hoc cac ky nang co hoc. ((hieu ve) or (hieu va)) nam ((thu va) OR (thuc va)) thanh va chua tre*.