Perhaps you should try some spelling variations:
hieu van » thien van, lieu va
tinh hoi » trinh hoi, tinh hoc, tinh hai
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va tinh » may tinh
hoi cua » hoi chuc
te lai » te tai, te bai
lai ky » sai ky, dai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te lai ky lang xa hoi. ((((hieu ve) OR (hieu van))) or (hieu va)) am thuc va tinh hoi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te lai ky lang xa hoi. ((((hieu ve) OR (hieu van))) OR (hieu va)) am thuc va tinh hoi cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te lai ky lang xa hoi. ((((hieu ve) OR (hieu van))) or (hieu va)) am thuc va tinh hoi cua vat".
• Adding a wildcard symbol may retrieve word variants: te lai ky lang xa hoi. ((((hieu ve) OR (hieu van))) or (hieu va)) am thuc va tinh hoi cua vat*.