Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
y lang » o lang, tay lang, yen lang
_ lang » o lang, _ land
va cau » van cau, va cac, va dau
luc va » duc va, tuc va, loc va
vi cua » vai cua, di 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: tu sach ((y lang) or (_ lang)) xa hoi. hieu va cau luc va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y lang) OR (_ lang)) xa hoi. hieu va cau luc va danh vi cua te*.