Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van doat hon snippets" » "van doat code snippets", "van dat hon snippets", "van hoat hon snippets", "van doan hon snippets", "van dua hon snippets", "van hoat ho snippets", "van luat hon snippets"
"python using java snippets" » "python using data 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: (((("van doat hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van doat hon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van doat hon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van doat hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.