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