Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trau chu cua snippets" » "tran chau cua snippets", "tu chu cua snippets", "cau chu cua snippets", "trau chuc cua snippets", "trau hu cua snippets", "trau chi 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: (((("trau chu 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: (((("trau chu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trau chu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trau chu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.