Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va tinh » may tinh
va hanh » van hanh, va thanh, va danh
va cua » va chua, via cua, ca 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 duc ((va tinh) or (va hanh)) va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu ve cham duc ((va tinh) OR (va hanh)) va cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu ve cham duc ((va tinh) or (va hanh)) va cua te*.