Perhaps you should try some spelling variations:
chet duoc » che duoc, cho duoc, che quoc
sang tao » hang tai
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
ve chet » ve chat, ve che, se chet
duoc va » nuoc va, duc va, duoc ma
lam cua » nam cua, lam chat
ap cua » tap cua, gap cua, lap cua

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 ky sang tao hoi. hieu ve chet duoc va thanh ((ap cua) or (lam cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang tao hoi. hieu ve chet duoc va thanh ((ap cua) OR (lam cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang tao hoi. hieu ve chet duoc va thanh ((ap cua) or (lam cua)) tre*.