Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"len con hanh snippets" » "len co hanh snippets", "len hon hanh snippets", "len lon hanh snippets", "len cong hanh snippets", "lon con hanh snippets", "le con hanh snippets", "len con hanh slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("len con hanh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("len con hanh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len con hanh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len con hanh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.