Perhaps you should try some spelling variations:
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
ve cam » ve cham, va cam, ve cau
ve cai » va cai, ve tai, ve cau
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa
va cua » va chua, via cua, ca 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 ty xang xa hoi. hieu ((((ve cam) OR (ve cai))) or (ve cac)) tuc va hanh va cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang xa hoi. hieu ((((ve cam) OR (ve cai))) OR (ve cac)) tuc va hanh va cua vat*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty xang xa hoi. hieu ((((ve cam) OR (ve cai))) or (ve cac)) tuc va hanh va cua vat*".