Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho vat cua snippets" » "cho vay cua snippets", "cho va cua snippets", "cho vit cua snippets", "cho mat cua snippets", "cho bat cua snippets", "cho dat 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: (((("cho vat 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: (((("cho vat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho vat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho vat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.