Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
dua tren » dung tren
nang mai » nang ma, lang mai, nang cai
nang tai » hang tai, tang tai, sang tai
sach ky » sac ky, sach y, sach ty
cu tren » tu tren
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cao

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 ky ((nang mai) or (nang tai)) hoi. lieu va cam xuc va thanh vi ((cu tren) OR (dua tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky ((nang mai) OR (nang tai)) hoi. lieu va cam xuc va thanh vi ((cu tren) OR (dua tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky ((nang mai) or (nang tai)) hoi. lieu va cam xuc va thanh vi ((cu tren) OR (dua tren))*".