Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cuc triet » cua triet, su triet, cac trieu
sach kem » hanh kem
va thanh » gia thanh, ban thanh, va tinh
sach ky » sach y, sach ty, sach hay
nang xa » nang x, lang xa, nang ma
qua cac » cua cac
sac ky » cac ky, sai ky
cac bo » bac bo, cac co
bo va » bao va, do va, so va

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc ((((sach ky) OR (sach kem))) or (sac ky)) nang xa hoi. hieu qua cac bo va thanh tai cuc triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc ((((sach ky) OR (sach kem))) OR (sac ky)) nang xa hoi. hieu qua cac bo va thanh tai cuc triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc ((((sach ky) OR (sach kem))) or (sac ky)) nang xa hoi. hieu qua cac bo va thanh tai cuc triet".
• Adding a wildcard symbol may retrieve word variants: nuoc ((((sach ky) OR (sach kem))) or (sac ky)) nang xa hoi. hieu qua cac bo va thanh tai cuc triet*.