Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc tho cua snippets" » "luc thi cua snippets", "duc tho cua snippets", "tuc tho cua snippets", "luc thao cua snippets", "luc tho ca snippets", "luc tro cua 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: (((("luc tho cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc tho cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc tho cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc tho cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.