Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sieu thi moi snippets" » "trieu thi moi snippets", "dieu tri moi snippets", "su thi moi snippets", "sieu thi mai snippets", "sieu thi mo snippets", "sieu thi hoai 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: (((("sieu thi moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sieu thi moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sieu thi moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sieu thi moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.