Perhaps you should try some spelling variations:
"lon don chat snippets" » "lon don code snippets", "lon doc chat snippets", "lon cong chat snippets", "lon dinh chat snippets", "lon con chat snippets", "hon don chat snippets", "lon xon chat snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("lon don chat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("lon don chat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lon don chat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lon don chat snippets"))) or ("locating bug core snippets"))*.