Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho tu cham snippets" » "pho toc cham snippets", "pho thi cham snippets", "cho tu cham snippets", "kho tu cham snippets", "phong tu cham 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: (((("pho tu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho tu cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho tu cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho tu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.