Perhaps you should try some spelling variations:
giau su » giao su, giau tu, gian suu
tuc gia » tac gia, duc gia, toc gia
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, ve cai
ma hoi » mai hoi, xa hoi, ma hoa
gia su » gia suc, giao su, gia sa
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang ma hoi. hieu ((ve cam) or (va cam)) tuc gia thanh ((giau su) OR (gia su)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoi. hieu ((ve cam) OR (va cam)) tuc gia thanh ((giau su) OR (gia su)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ma hoi. hieu ((ve cam) or (va cam)) tuc gia thanh ((giau su) OR (gia su)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoi. hieu ((ve cam) or (va cam)) tuc gia thanh ((giau su) OR (gia su)) triet*.