Perhaps you should try some spelling variations:
"duy doc chat snippets" » "duy doc code snippets", "duy hoc chat snippets", "duy toc cham snippets", "duy hop chat snippets", "day doc chat snippets", "duy dac chat snippets", "duy dot 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 ("duy doc 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 ("duy doc chat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( duy doc chat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("duy doc chat snippets"))) or ("locating bug core snippets"))*.