Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
bieu cua » dieu cua, hieu cua, ben cua
sach ky » sac ky, sach y, sach ty
lang ha » long ha
hanh di » hanh vi, hanh de, hang di
luc va » duc va, tuc va, loc va
di cua » dai cua, doi cua, de cua
cua te » cua tu

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 x) or (lang ha)) hoi. bieu cua cac ((luc va) or (thuc vat)) hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky ((nang x) OR (lang ha)) hoi. bieu cua cac ((luc va) OR (thuc vat)) hanh di cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ky ((nang x) or (lang ha)) hoi. bieu cua cac ((luc va) or (thuc vat)) hanh di cua te*.