Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
su sach » so sach, vu sach
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
ve cham » va cham, vu cham, viet cham
sach ly » sach y, sach lo, sach ty
ve chim » va chim, ve chinh, te chiem
va hanh » van hanh, va thanh, va danh
ve chat » va chat, van chat
tai va » thai va, mai va, tri va
xuc va » duc va, tuc va, luc va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ly nang xa hoi. hieu ((((ve cham) OR (ve chim))) or (ve chat)) xuc va hanh tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly nang xa hoi. hieu ((((ve cham) OR (ve chim))) OR (ve chat)) xuc va hanh tai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly nang xa hoi. hieu ((((ve cham) OR (ve chim))) or (ve chat)) xuc va hanh tai va thiet".
• Adding a wildcard symbol may retrieve word variants: su sach ly nang xa hoi. hieu ((((ve cham) OR (ve chim))) or (ve chat)) xuc va hanh tai va thiet*.