Perhaps you should try some spelling variations:
tham nuoc » thay nuoc, thoat nuoc, nha nuoc
hieu van » hieu va, thien van, lieu va
tham soc » cham soc, thai son, ham so
dinh cuu » dinh chi
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
va hanh » van hanh, va thanh, va danh
vi cuu » vi luu, vinh cuu

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 xa hoi. hieu van ((tham soc) OR (tham nuoc)) va hanh ((vi cuu) or (dinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang xa hoi. hieu van ((tham soc) OR (tham nuoc)) va hanh ((vi cuu) OR (dinh cuu)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang xa hoi. hieu van ((tham soc) OR (tham nuoc)) va hanh ((vi cuu) or (dinh cuu)) tre*".