Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tieu van cuc snippets" » "hieu van cuc snippets", "sieu van cuc snippets", "lieu van cuc snippets", "tieu van duc snippets", "tieu van luc snippets", "tieu van cu 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: (((("tieu van cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tieu van cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu van cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu van cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.