Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van khoa can snippets" » "van khoa code snippets", "van hoa can snippets", "von khoa can snippets", "san khoa can snippets", "van khoa cam snippets", "van khoa cap snippets", "van khoi can 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 khoa can 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 khoa can snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van khoa can snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van khoa can snippets"))) or ("locating bug core snippets"))*.