Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu ca me snippets" » "hieu cac me snippets", "hieu cua me snippets", "hieu va me snippets", "hieu cha me snippets", "hieu ba me snippets", "hieu ca ve 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: (((("hieu ca me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu ca me snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu ca me snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu ca me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.