Perhaps you should try some spelling variations:
te sach » toc sach
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
sach 2 » sach y
soc va » hoc va, loc va, doc va
di cuu » di cau, dinh cuu
di cua » dai cua, doi cua, de 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 sach 2 ((nang xa) or (lang xa)) hoi. hieu ve cham soc va danh ((di cuu) OR (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach 2 ((nang xa) OR (lang xa)) hoi. hieu ve cham soc va danh ((di cuu) OR (di cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach 2 ((nang xa) or (lang xa)) hoi. hieu ve cham soc va danh ((di cuu) OR (di cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach 2 ((nang xa) or (lang xa)) hoi. hieu ve cham soc va danh ((di cuu) OR (di cua)) tre*.