Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nang tai » hang tai, tang tai, sang tai
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
tai hoi » tai khoi, dai hoi, tai hai
va cham » va chat, va tham
cu tren » tu tren, dua tren
cuu va » cuu ve
vi cu » vi su, vi xu, vi du

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ly nang tai hoi. lieu va cham ((cuu va) or (cuu van)) hanh vi cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ly nang tai hoi. lieu va cham ((cuu va) OR (cuu van)) hanh vi cu tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ly nang tai hoi. lieu va cham ((cuu va) or (cuu van)) hanh vi cu tren*.