Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
ban nhanh » ban hanh, ban thanh, ban nhan
cao tren » ca tren, cau tren, co tren
thai cao » tai cao, thoai cac, thuat cao
dang cay » dang xay, dang ca, dang cac
cay phoi » cap phoi, tay hoi, cay cho
ve cham » va cham, ve chat, vu cham
duc ban » duc tan, duc van, dua ban
tu sach » thu sach, te sach, tu cach
ty dang » ty xang, ky dang, ty hang
su sach » so sach, vu sach
ve cam » ve cac, va cam, ve cai

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) or (su sach)) ty dang cay phoi. hieu ((ve cam) or (ve cham)) duc ban nhanh thai cao tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty dang cay phoi. hieu ((ve cam) OR (ve cham)) duc ban nhanh thai cao tren.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ty dang cay phoi. hieu ((ve cam) or (ve cham)) duc ban nhanh thai cao tren*.