Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri han cua snippets" » "tri nhan cua snippets", "tri hoan cua snippets", "tri phan cua snippets", "tri hang cua snippets", "tri than cua 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: (((("tri han cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri han cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri han cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri han cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.