Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thien van » thi van
van hanh » van thanh, ban hanh, van anh
lang ha » long ha
sach ty » sach y, sach tu, sach thu
van cam » van nam, van lam, van cau
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
cua tu » cua tuc, cua cu, cua te
cua su » qua su

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty ((mang may) OR (lang ha)) hoi. thien van cam xuc van hanh di ((cua tu) OR (cua su))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty ((mang may) or (lang ha)) hoi. thien van cam xuc van hanh di ((cua tu) OR (cua su))~".
• Adding a wildcard symbol may retrieve word variants: thuat sach ty ((mang may) or (lang ha)) hoi. thien van cam xuc van hanh di ((cua tu) OR (cua su))*.