Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
ly lang » ly hang, ly vang, ly lanh
hanh di » hanh vi, hanh de, hang di
le lang » le tang, le dang, le xang
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
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 ((ly lang) or (le lang)) xa hoi. hieu va ((cam luc) or (cau truc)) va hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ly lang) OR (le lang)) xa hoi. hieu va ((cam luc) OR (cau truc)) va hanh di cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ly lang) or (le lang)) xa hoi. hieu va ((cam luc) or (cau truc)) va hanh di cua te*.