Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khac do dan slippers" » "khac di dan slippers", "khac do danh slippers", "khac dao dan slippers", "khac do dang slippers", "khac do dan slippery", "khac do dan grippers"
"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: (((("khac do dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khac do dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khac do dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khac do dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.