Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
su triet » su viet, su tien, ve triet
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
hieu ve » hieu va, hieu van
cau cua » cau qua, ca cua, chat cua
sach ky » sac ky, sach y, sach ty
ban dan » ban hang, ban hanh, ban quan
dan vai » dan va, dan tai, dan vat
cua tre » cua te, cuu tre, cua triet
cu cua » ca cua, co cua, hu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky lang xa hoi. hieu ve ((cau cua) OR (cu cua)) ban dan vai ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky lang xa hoi. hieu ve ((cau cua) OR (cu cua)) ban dan vai ((cua tre) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky lang xa hoi. hieu ve ((cau cua) OR (cu cua)) ban dan vai ((cua tre) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky lang xa hoi. hieu ve ((cau cua) OR (cu cua)) ban dan vai ((cua tre) or (su triet))*.