Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu dang so snippets" » "huu dung so snippets", "huu bang so snippets", "huu dong so snippets", "huu dang son snippets", "huu dang su snippets", "huu dang do 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: (((("huu dang 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: (((("huu dang so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu dang so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu dang so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.