Perhaps you should try some spelling variations:
day nhanh » day thanh, duy nhanh, day manh
dao hanh » dao thanh, dang hanh, ban hanh
dac nhan » cac nhan, danh nhan, ca nhan
cam thuc » am thuc, nam thuc, cam thu
vu sach » vu bach, su sach, vu khach
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cac, va cao
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty nang x ho. hieu va cam thuc ((dao hanh) or (((day nhanh) OR (dac nhan)))) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang x ho. hieu va cam thuc ((dao hanh) OR (((day nhanh) OR (dac nhan)))) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty nang x ho. hieu va cam thuc ((dao hanh) or (((day nhanh) OR (dac nhan)))) di cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang x ho. hieu va cam thuc ((dao hanh) or (((day nhanh) OR (dac nhan)))) di cua tre*.