Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi tieu doi snippets" » "chi tiet doi snippets", "chi hieu doi snippets", "cai tien doi snippets", "chi lieu doi snippets", "chi tiep doi snippets", "chi trieu dai 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: (((("chi tieu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi tieu doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi tieu doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi tieu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.