Perhaps you should try some spelling variations:
dieu cua » dieu tra
nang tai » hang tai, tang tai, sang tai
dat duoc » dat nuoc, da duoc, luat duoc
hieu cac » hieu luc, hieu va, hieu van
te sach » toc sach
danh ca » dan ca, doanh cua, danh cho
va danh » va dinh, va dan, va hanh
duoc va » nuoc va, duc va, duoc ma
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu ca » hieu cua, hieu va, hieu xa
tai hoi » tai khoi, dai hoi, tai hai
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang tai hoi. ((((hieu ca) OR (hieu cac))) or (dieu cua)) dat duoc va danh ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang tai hoi. ((((hieu ca) OR (hieu cac))) OR (dieu cua)) dat duoc va danh ca cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang tai hoi. ((((hieu ca) OR (hieu cac))) or (dieu cua)) dat duoc va danh ca cua tre*".