Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuong thi co snippets" » "luong thi co snippets", "duong thi co snippets", "truong thi co snippets", "vuong thi mo snippets", "vuong thi cu snippets", "vuong thi bo 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 thi co 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 thi co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuong thi co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuong thi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.