Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van nang do snippets" » "van nang code snippets", "van quang do snippets", "van ban do snippets", "van dong do snippets", "van nang doc snippets", "van nang dao snippets", "van nang du snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van nang do 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 nang do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van nang do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van nang do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.