Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho dang do snippets" » "pho dong do snippets", "pho danh do snippets", "pho mang do snippets", "pho nang doc snippets", "pho dung doi snippets", "pho dang duc 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: (((("pho dang 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: (((("pho dang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho dang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho dang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.