Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao su cua snippets" » "khap su cua snippets", "khao sat cua snippets", "khao cuu cua snippets", "khao hu cua snippets", "khao tu cua snippets", "khao vu cua 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 su cua 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 su cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao su cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao su cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.