Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac dao so snippets" » "toc dao so snippets", "tac da so snippets", "tac bao so snippets", "tac dai so snippets", "tac dao o snippets", "tac dao do 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: (((("tac dao so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac dao so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac dao so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac dao so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.