Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc quoc can snippets" » "hoc nuoc can snippets", "hoc duoc can snippets", "hoc thuoc can snippets", "hoc quoc chan snippets", "hoc luoc can snippets", "hoc quoc ban 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 ("hoc quoc 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 ("hoc quoc can snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hoc quoc can snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hoc quoc can snippets"))) or ("locating bug code snippets"))*.