Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, thanh san
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
qua cam » qua cham, qua cac, qua ca
lang xa » lang ha, dang xay, lang van
sac ky » cac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sac ky) or (sai ky)) lang xa hoi. hieu qua cam duc ban ((thanh tai) OR (doanh tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (sai ky)) lang xa hoi. hieu qua cam duc ban ((thanh tai) OR (doanh tai)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sac ky) or (sai ky)) lang xa hoi. hieu qua cam duc ban ((thanh tai) OR (doanh tai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) or (sai ky)) lang xa hoi. hieu qua cam duc ban ((thanh tai) OR (doanh tai)) cua triet*.