Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cheo cua can snippets" » "chuoi cua can snippets", "co cua can snippets", "chat cua can snippets", "cheo cua cac snippets", "cheo cua ban snippets", "cheo cua dan snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cheo cua can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cheo cua can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cheo cua can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cheo cua can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.