Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van cai chet snippets" » "van chai chet snippets", "van kai chen snippets", "van la chet snippets", "van hai chet snippets", "van chi chet snippets", "van cau chet 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: (((("van cai chet snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van cai chet snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van cai chet snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van cai chet snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.