Perhaps you should try some spelling variations:
nhanh cay » nhanh ha, nhanh bac, nhanh va
va nhanh » va thanh, va hanh, va nhan
tu sach » thu sach, su sach, te sach
ly nang » ky nang, ly hang, ly vang
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
cay cua » ca cua, day cua, cay ca
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, v nang, may nang
tuc va » thuc va, truc va, tuc xa

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 nang) or (ly nang)) ((le hoi) or (ma hoa)). hieu va cac tuc va nhanh cay cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ly nang)) ((le hoi) OR (ma hoa)). hieu va cac tuc va nhanh cay cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (ly nang)) ((le hoi) or (ma hoa)). hieu va cac tuc va nhanh cay cua tre*.