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

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 va)) am thuc va ((tinh hoi) OR (tinh hai)) 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 va)) am thuc va ((tinh hoi) OR (tinh hai)) 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 va)) am thuc va ((tinh hoi) OR (tinh hai)) cua vat".
• Adding a wildcard symbol may retrieve word variants: te lai ky lang xa hoi. ((hieu ve) or (hieu va)) am thuc va ((tinh hoi) OR (tinh hai)) cua vat*.