Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
tinh bai » tinh bac, tinh hai, hinh bai
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
y nang » ky nang, ly nang, v nang
cuu va » cuu ve
ca tre » ca tren, cua tre, ca tru

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y nang xa hoi. hieu ve cham ((cuu va) OR (cuu van)) tinh bai ca tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang xa hoi. hieu ve cham ((cuu va) OR (cuu van)) tinh bai ca tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang xa hoi. hieu ve cham ((cuu va) OR (cuu van)) tinh bai ca tre*.