Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong he soi snippets" » "luong che soi snippets", "luong ha soi snippets", "luong ke soi snippets", "luong he moi snippets", "luong he noi snippets", "luong he so 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: (((("luong he soi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong he soi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong he soi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong he soi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.