Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chau phi hon snippets" » "chi phi hon snippets", "chau tho hon snippets", "chau thi hong snippets", "chau thi hoan snippets", "chau phi cong 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: (((("chau phi hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chau phi hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chau phi hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chau phi hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.