Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tu chanh do snippets" » "tu hanh do snippets", "tu thanh do snippets", "tu chung do snippets", "tu chinh do snippets", "tu nhanh doc 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: (((("tu chanh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tu chanh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu chanh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu chanh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.