Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thach ly ve snippets" » "thach lam ve snippets", "thanh lay ve snippets", "thanh le ve snippets", "thach ly va snippets", "thach ly ke 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: (((("thach ly ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thach ly ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thach ly ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thach ly ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.