Perhaps you should try some spelling variations:
tham nuoc » thay nuoc, thoat nuoc, nha nuoc
hieu van » hieu va, thien van, lieu va
van tham » van thanh, van tuan, van chat
dinh cuu » dinh chi
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
va danh » va dinh, va dan, va hanh
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
vi cuu » vi luu, vinh cuu

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: te sac ky dang xa hoi. hieu van tham nuoc va danh ((vi cuu) OR (dinh cuu)) tre~.
• Adding a wildcard symbol may retrieve word variants: te sac ky dang xa hoi. hieu van tham nuoc va danh ((vi cuu) or (dinh cuu)) tre*.