Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc khoi can snippets" » "buoc khoi can snippets", "cuoc khoi can snippets", "phuc khoi can snippets", "luc khoa can snippets", "luc khoi nang snippets", "luc hoc can 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: (((("python using java snippets") or ("luc khoi can snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("luc khoi can snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( luc khoi can snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("luc khoi can snippets"))) or ("locating bug code snippets"))*.