Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va xuat cau snippets" » "va luat cau snippets", "va xuat cac snippets", "va xuat rau snippets", "van xuat cau snippets", "san xuat cau 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: (((("va xuat cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("va xuat cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va xuat cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va xuat cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.