Perhaps you should try some spelling variations:
chat duc » chat xuc, chat doc, chet duoc
thanh ha » thanh hoa, thanh hai, nhanh ha
te sach » toc sach
ty nang » ty xang, ty hang, ly nang
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
luu tre » luu tru, cuu tre, luy tre

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ty nang) OR (ky nang)) xay hoi. hieu ve chat duc va ((thanh ha) or (hang va)) luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ky nang)) xay hoi. hieu ve chat duc va ((thanh ha) OR (hang va)) luu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ky nang)) xay hoi. hieu ve chat duc va ((thanh ha) or (hang va)) luu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ky nang)) xay hoi. hieu ve chat duc va ((thanh ha) or (hang va)) luu tre*.