Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doat hoc cac snippets" » "doat hon cac snippets", "dai hoc cac snippets", "hoa hoc cac snippets", "doat hoc cao 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: (((("doat hoc cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doat hoc cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doat hoc cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doat hoc cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.