Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
su sach » vu sach
va hanh » van hanh, va thanh, va danh
ve chat » va chat, van chat
ve chim » va chim, ve cham, ve chinh
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
so sach » so sanh, bo sach, co sach
thai va » thai van
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) OR (so sach)) ly nang xa hoi. hieu ((ve chim) or (ve chat)) xuc va hanh thai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ly nang xa hoi. hieu ((ve chim) OR (ve chat)) xuc va hanh thai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ly nang xa hoi. hieu ((ve chim) or (ve chat)) xuc va hanh thai va thiet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ly nang xa hoi. hieu ((ve chim) or (ve chat)) xuc va hanh thai va thiet*.