Perhaps you should try some spelling variations:
su sach » vu sach
so sach » so sanh, bo sach, co sach
nang ma » tang ma, sang ma, nang cao
ve chim » va chim, ve cham, ve chinh
ve chat » va chat, van chat
han mai » han tai, ban mai, han mac
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
va han » va phan, van han, va hanh
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)) y nang ma hoa. hieu ((ve chim) or (ve chat)) xuc va han mai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) y nang ma hoa. hieu ((ve chim) OR (ve chat)) xuc va han mai va thiet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) y nang ma hoa. hieu ((ve chim) or (ve chat)) xuc va han mai va thiet*.