Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi tuong cu snippets" » "moi truong cu snippets", "doi song cu snippets", "doi tuong cua snippets", "doi tuong tu snippets", "doi tuong c 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: (((("doi tuong cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi tuong cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tuong cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tuong cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.