Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan ha chau snippets" » "dan hat chau snippets", "dan a chau snippets", "dan lai chau snippets", "dang ha chau snippets", "dan ca chau snippets", "van ha chau 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: (((("dan ha chau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan ha chau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan ha chau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan ha chau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.