Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cham cuu » cap cuu, chat cua
dau tren » dau tien, dau tieng, dau trong
dat tren » dat trong, dua tren
lang xa » lang ha, dang xay, lang van
va cham » va chat, va tham
hanh va » hanh vi
y lang » o lang, _ lang, tay lang
cuu ve » cuu va

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 lang xa hoi. lieu va cham cuu ve ((hanh va) or (hang va)) ((dau tren) or (dat tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y lang xa hoi. lieu va cham cuu ve ((hanh va) OR (hang va)) ((dau tren) OR (dat tren)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach y lang xa hoi. lieu va cham cuu ve ((hanh va) or (hang va)) ((dau tren) or (dat tren))*.