Perhaps you should try some spelling variations:
dang tay » dang xay, dung tay, dan tay
qua tham » qua cham, qua than, qua thanh
tham soc » cham soc, tham nuoc, thai son
van hanh » van thanh, ban hanh, van anh
ky dang » ky nang, ky danh
tay hoi » tay ho, tao hoi, tay thai
va hanh » va thanh, va danh, ban hanh
cua tre » cua te, cuu tre, cua triet
te cac » tu cac, ve cac, te cao
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cac ky dang tay hoi. hieu qua tham soc ((va hanh) OR (van hanh)) vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac ky dang tay hoi. hieu qua tham soc ((va hanh) OR (van hanh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te cac ky dang tay hoi. hieu qua tham soc ((va hanh) OR (van hanh)) vi cua tre*.