Perhaps you should try some spelling variations:
thi cham » thi hai, toc cham, thi ha
vu sach » vu bach, su sach, vu khach
va hanh » van hanh, va thanh, va danh
ty tang » tay tang, ty xang, ty hang
tang ma » mang may, tang van
cua tre » cuu tre, cua triet, dua tren
tu cham » toc cham
sach ty » sach y, sach tu, sach thu
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty tang ma hoi. hieu ((tu cham) or (thi cham)) duc va hanh vi ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty tang ma hoi. hieu ((tu cham) OR (thi cham)) duc va hanh vi ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty tang ma hoi. hieu ((tu cham) or (thi cham)) duc va hanh vi ((cua tre) OR (cua te))*".