Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi mu le snippets" » "khoi su le snippets", "kho mu le snippets", "khoi cua le snippets", "khoi vu le snippets", "khoi tu le 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: (((("khoi mu le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi mu le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi mu le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi mu le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.