Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngan ve mo snippets" » "ngang ve mo snippets", "nhan ve mo snippets", "ngan viet mo snippets", "ngan ve moi snippets", "ngan ve mot snippets", "ngan ve mon 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: (((("ngan ve mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngan ve mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngan ve mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngan ve mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.