Perhaps you should try some spelling variations:
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
cho hoc » co hoc, khoa hoc
va hanh » van hanh, va thanh, va danh
xu tren » tu tren, cu tren, xa tren
vi xu » va xu, ve xu, vi su

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. lieu va ((((chon loc) OR (cho hoc))) or (cham soc)) va hanh vi xu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang xa hoi. lieu va ((((chon loc) OR (cho hoc))) OR (cham soc)) va hanh vi xu tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang xa hoi. lieu va ((((chon loc) OR (cho hoc))) or (cham soc)) va hanh vi xu tren".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang xa hoi. lieu va ((((chon loc) OR (cho hoc))) or (cham soc)) va hanh vi xu tren*.