Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
cua tre » cua te, cuu tre, cua triet
san cua » sang cua, ban cua, dan cua
cam tuc » cam xuc, nam thuc, dam thuc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
cam tu » cam thu, nam tu, dam tu
te lai » te tai, te bai
te sai » te tai, te bai, te hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sai) OR (te lai)) ky nang ma hoi. hieu ve ((cam tuc) or (cam tu)) va thanh san cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sai) OR (te lai)) ky nang ma hoi. hieu ve ((cam tuc) OR (cam tu)) va thanh san cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sai) OR (te lai)) ky nang ma hoi. hieu ve ((cam tuc) or (cam tu)) va thanh san cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sai) OR (te lai)) ky nang ma hoi. hieu ve ((cam tuc) or (cam tu)) va thanh san cua tre*.