Perhaps you should try some spelling variations:
hanh di » hanh vi, hanh de, hang di
sach ly » sach y, sach lo, sach hay
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, sach thu
ve cam » ve cham, ve cac, va cam
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((sach ly) or (sach ty)) lang xa hoi. hieu ve cam ((duc va) or (thuc vat)) hanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ly) OR (sach ty)) lang xa hoi. hieu ve cam ((duc va) OR (thuc vat)) hanh di cua tu.
• Adding a wildcard symbol may retrieve word variants: vu ((sach ly) or (sach ty)) lang xa hoi. hieu ve cam ((duc va) or (thuc vat)) hanh di cua tu*.