Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huy huong so snippets" » "huy duong so snippets", "huy hung so snippets", "huy luong so snippets", "huy tuong so snippets", "huy muong so snippets", "huy huong co 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: (((("huy huong 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: (((("huy huong so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huy huong so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huy huong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.