Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuong le doi snippets" » "xuong len doi snippets", "vuong qh doi snippets", "trong le doi snippets", "vuong te doi snippets", "vuong ly doi snippets", "vuong ve doi 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: (((("vuong le doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vuong le doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuong le doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuong le doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.