Perhaps you should try some spelling variations:
hanh thanh » nhanh thanh, thanh thanh, khanh thanh
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, doanh tai
nam thuc » nam thuoc, am thuc, nam thu
hieu ca » hieu cac, hieu cua, hieu va
tai cua » thai cua, tai cuc, tri cua
sach ky » sach y, sach ty, sach kem
hieu ha » hieu hoa, hieu va, hieu xa
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky

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 ky) or (sac ky)) nang xa hoi. ((hieu ha) OR (hieu ca)) nam thuc hanh thanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) nang xa hoi. ((hieu ha) OR (hieu ca)) nam thuc hanh thanh tai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sac ky)) nang xa hoi. ((hieu ha) OR (hieu ca)) nam thuc hanh thanh tai cua triet*".