Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
cham tuc » nham thuc, tham thuc, cham soc
nang mai » nang ma, nang tai, lang mai
va thanh » ban thanh, va tinh, le thanh
cua tre » cua te, cuu tre, cua triet
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
va cua » va chua, via cua, ca cua
tu cao » cu cao, tu cac, vu cao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu cao ky nang mai hoi. hieu ve ((cham tuc) OR (pham thuc)) ((va thanh) OR (gia thanh)) va cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cao ky nang mai hoi. hieu ve ((cham tuc) or (pham thuc)) ((va thanh) OR (gia thanh)) va cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu cao ky nang mai hoi. hieu ve ((cham tuc) or (pham thuc)) ((va thanh) OR (gia thanh)) va cua tre*.