Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc biet de snippets" » "hoc viet de snippets", "khac biet de snippets", "hoc thiet de snippets", "hoc biet den snippets", "hoc biet ve snippets", "hoc biet dac 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: (((("hoc biet de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc biet de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc biet de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc biet de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.