Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
ve cham » va cham, vu cham, ve chim
sach ty » sach y, sach tu, sach thu
ve chat » va chat, van chat
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cac, va cao
va dau » va dao
dau ha » dam ha, dau va, cau ha
ha cua » hoa cua, hai cua, nha cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang xa hoi. hieu ((((ve cham) OR (ve chat))) or (va cam)) duc va dau ha cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu ((((ve cham) OR (ve chat))) OR (va cam)) duc va dau ha cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. hieu ((((ve cham) OR (ve chat))) or (va cam)) duc va dau ha cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu ((((ve cham) OR (ve chat))) or (va cam)) duc va dau ha cua te*.