Perhaps you should try some spelling variations:
tham soc » cham soc, tham nuoc, thai son
dinh cuu » dinh chi
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
va tham » van tham, va cham, va thuat
hieu va » lieu va, hieu qua
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
vi cuu » vi luu, vinh cuu
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky dang xa hoi. hieu va tham soc ((va hanh) OR (va thanh)) ((vi cuu) or (dinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang xa hoi. hieu va tham soc ((va hanh) OR (va thanh)) ((vi cuu) OR (dinh cuu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky dang xa hoi. hieu va tham soc ((va hanh) OR (va thanh)) ((vi cuu) or (dinh cuu)) tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky dang xa hoi. hieu va tham soc ((va hanh) OR (va thanh)) ((vi cuu) or (dinh cuu)) tre*.