Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
bai cua » ban cua, dai cua, bai ca
hai cua » thai cua, dai cua, hoi cua
y lang » o lang, _ lang, tay lang
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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

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