Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hoang dai » hoang hai, hoang mai, hoang da
cham tuc » nham thuc, pham thuc, tham thuc
hang dau » hang va, hang tai
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
tuc van » thuc van, truc van, tuc va
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, dua tren
te sach » toc sach
ma hoi » mai hoi, xa hoi, ma hoa

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 ma hoi. hieu ve cham tuc van ((hoang dai) or (hang dau)) ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ma hoi. hieu ve cham tuc van ((hoang dai) OR (hang dau)) ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoi. hieu ve cham tuc van ((hoang dai) or (hang dau)) ((cua tre) or (cua triet))*.