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