Perhaps you should try some spelling variations:
dang xay » dang van, van xay
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach y, sach ty
ket van » viet van, ket doan, kien van
te sach » toc sach
cam tuc » cam xuc, nam thuc, dam thuc
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
cam tu » cam thu, nam tu, dam tu

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 ky dang xay hoi. lieu va ((cam tuc) or (cam tu)) va thanh ((ket va) OR (ket van)) trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang xay hoi. lieu va ((cam tuc) OR (cam tu)) va thanh ((ket va) OR (ket van)) trien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang xay hoi. lieu va ((cam tuc) or (cam tu)) va thanh ((ket va) OR (ket van)) trien".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang xay hoi. lieu va ((cam tuc) or (cam tu)) va thanh ((ket va) OR (ket van)) trien*.