Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuoc xanh so snippets" » "nuoc anh so snippets", "quoc danh so snippets", "duoc anh so snippets", "tuoc anh so 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: (((("tuoc xanh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuoc xanh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuoc xanh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuoc xanh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.