Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho giap voi snippets" » "pho giao voi snippets", "ho gia voi snippets", "cho giao voi snippets", "pho gian voi snippets", "pho gia moi snippets", "pho giap thi 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: (((("pho giap 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: (((("pho giap voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho giap voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho giap voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.