Perhaps you should try some spelling variations:
tham xuc » tham nuoc, tham thuc, pham duc
te sach » toc sach
va hanh » van hanh, va thanh, va danh
va tham » van tham, va cham, va thanh
sach tu » sach thu, cach tu, sach ty
hieu va » lieu va, hieu qua
lang ha » long ha
xuc va » duc va, tuc va, luc va
di cua » doi cua, de cua, do cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu ((nang x) or (lang ha)) hoi. hieu va tham xuc va hanh ((di cua) OR (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((nang x) OR (lang ha)) hoi. hieu va tham xuc va hanh ((di cua) OR (dai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu ((nang x) or (lang ha)) hoi. hieu va tham xuc va hanh ((di cua) OR (dai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach tu ((nang x) or (lang ha)) hoi. hieu va tham xuc va hanh ((di cua) OR (dai cua)) tre*.