Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
truc van » truc va, thuc van, truc ban
hang dau » hang va, hang tai
cua tre » cua te, cuu tre, dua tren
te sach » toc sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
tuc van » thuc van, tuc va, duc van
y nang » ky nang, ly nang, v nang
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 y nang ma hoi. hieu ve cham ((tuc van) OR (truc van)) hang dau ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. hieu ve cham ((tuc van) OR (truc van)) hang dau ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoi. hieu ve cham ((tuc van) OR (truc van)) hang dau ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. hieu ve cham ((tuc van) OR (truc van)) hang dau ((cua tre) or (cua triet))*.