Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan ngoc ve snippets" » "pham ngoc ve snippets", "tran ngoc ve snippets", "van ngoc ve snippets", "phan ngoc de snippets", "phan nuoc ve snippets", "phan ngoc le 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 ngoc ve 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 ngoc ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan ngoc ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan ngoc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.