Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"choi thu hoi snippets" » "choi thuc hoi snippets", "choi tu hoi snippets", "choi chu hoi snippets", "choi thu hoai snippets", "choi thu phoi snippets", "choi thu hai 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: (((("choi thu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("choi thu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( choi thu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("choi thu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.