Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thanh vai » thanh hai, thanh tai, thanh oai
va triet » va thiet, va trien, ve triet
cuc ban » cua ban, cac ban, cuu ban
sach ky » sach y, sach ty, sach kem
qua cam » qua cham, qua cac, qua ca
nang xa » nang x, lang xa, nang ma
cam cuc » cam xuc, cham cuu, pham cuc
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: tu ((sach ky) or (sac ky)) nang xa hoi. hieu qua cam cuc ban ((thanh vai) OR (thanh van)) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang xa hoi. hieu qua cam cuc ban ((thanh vai) OR (thanh van)) va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sac ky)) nang xa hoi. hieu qua cam cuc ban ((thanh vai) OR (thanh van)) va triet*".