Perhaps you should try some spelling variations:
dai nuoc » dat nuoc, dau nuoc, dai luoc
vinh cuu » dinh cuu, sinh cua, dinh cu
so sach » so sanh, bo sach, co sach
ly nang » ky nang, ly hang, ly vang
hieu ly » hieu ky, lieu ly, dieu ly
va danh » va dinh, va dan, va hanh
y nang » ky nang, v nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
vi cuu » vi luu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((y nang) or (ly nang)) ma hoi. hieu ly dai nuoc va danh ((vi cuu) or (vinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((y nang) OR (ly nang)) ma hoi. hieu ly dai nuoc va danh ((vi cuu) OR (vinh cuu)) tre.
• Adding a wildcard symbol may retrieve word variants: so sach ((y nang) or (ly nang)) ma hoi. hieu ly dai nuoc va danh ((vi cuu) or (vinh cuu)) tre*.