Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao tu chon snippets" » "kho tu chon snippets", "khao cuu chon snippets", "khao tho chon snippets", "khao tu choi snippets", "khao tu hon snippets", "khao lua 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: (((("khao 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: (((("khao tu chon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao tu chon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao tu chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.