Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam dong so snippets" » "lao dong so snippets", "lam sang so snippets", "ha dong so snippets", "lam dong son snippets", "lam dong co snippets", "lam cong 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: (((("lam dong 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: (((("lam dong so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam dong so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam dong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.