Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nham mat chi snippets" » "ham mat chi snippets", "cham mat chi snippets", "nha may chi snippets", "nham mat chinh snippets", "nham soat chi 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: (((("nham mat chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nham mat chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nham mat chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nham mat chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.