Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han li hoat snippets" » "han li hoa snippets", "han ly hoat snippets", "han linh hoat snippets", "shan li hoat snippets", "ban li hoat snippets", "dan li hoat 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: (((("han li hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han li hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han li hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han li hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.