Perhaps you should try some spelling variations:
tang ma » mang may, tang van
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, kho tang
ma hoi » mai hoi, xa hoi, ma hoa
vu san » va san, vu ban
ve hoc » te hoc, vi hoc, de hoc
va hoc » van hoc
vi cua » vai cua, di cua
vu sac » vu sach, va sac, vu cac
nuoc » quoc, duoc, ngoc

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: ((vu sac) OR (vu san)) ky tang ma hoi. hieu ((ve hoc) OR (va hoc)) nuoc va hanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((vu sac) or (vu san)) ky tang ma hoi. hieu ((ve hoc) or (va hoc)) nuoc va hanh vi cua tre*.