Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao chat cho snippets" » "cao chat cho snippets", "dao phat cho snippets", "tao chat cho snippets", "dao chat co snippets", "dao chat thom snippets", "dao cap cho 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: (((("dao chat cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao chat cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao chat cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao chat cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.