Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va tham co snippets" » "van tham co snippets", "va cham co snippets", "va thanh co snippets", "va tham do snippets", "va thap co snippets", "va thay co 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 tham 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: (((("va tham co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va tham co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va tham co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.