Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh van choi snippets" » "anh van chi snippets", "anh van cho snippets", "anh san choi snippets", "anh va choi snippets", "thanh van choi snippets", "doanh van choi 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: (((("anh van choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh van choi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh van choi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh van choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.