Perhaps you should try some spelling variations:
thanh tiep » thanh hiep, thanh tien, thanh thieu
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
van lam » van nam
sach ky » sac ky, sach y, sach ty
cua tu » cua tuc, cua su, cua cu
tuc va » thuc va, truc va, tuc xa
xuc va » duc va, luc va, xac va
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: tu sach ky nang ma hoi. hieu van lam ((xuc va) or (tuc va)) thanh tiep ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ma hoi. hieu van lam ((xuc va) OR (tuc va)) thanh tiep ((cua te) OR (cua tu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ma hoi. hieu van lam ((xuc va) or (tuc va)) thanh tiep ((cua te) OR (cua tu))*".