Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van luc chan snippets" » "van luc code snippets", "van luc nhan snippets", "van luu chan snippets", "van buoc chan snippets", "van loc chan snippets", "van duc chan snippets", "van lu chan 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: (((("python using java snippets") or ("van luc chan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van luc chan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van luc chan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van luc chan snippets"))) or ("locating bug core snippets"))*.