Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luu cham den snippets" » "luu chan den snippets", "luu chat den snippets", "huu chau den snippets", "luu cham nen snippets", "luu thai den snippets", "luu chat deo 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: (((("luu cham den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luu cham den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luu cham den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luu cham den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.