Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan kinh oz snippets" » "than kinh oz snippets", "phan dinh oz snippets", "phan minh oz snippets", "phan kinh hoc snippets", "phan kinh mon snippets", "phan kinh doc 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: (((("phan kinh oz snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan kinh oz snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan kinh oz snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan kinh oz snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.