Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua hoc que snippets" » "cua hoi que snippets", "cua thuoc que snippets", "cua nuoc que snippets", "cua hoc quy snippets", "cua hoc hue snippets", "cua hoc quyen 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: (((("cua hoc que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua hoc que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua hoc que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua hoc que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.