Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha cua voi snippets" » "phat cua voi snippets", "phai cua voi snippets", "pham cua voi snippets", "pha chua voi snippets", "pha cua vi snippets", "pha cua hoi 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: (((("pha cua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha cua voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha cua voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha cua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.