Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duong dan he snippets" » "duong dan code snippets", "duong dang he snippets", "huong dan he snippets", "duong van he snippets", "duong dan ve snippets", "duong dan de snippets", "duong dan ke 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 ("duong dan he snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("duong dan he snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( duong dan he snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("duong dan he snippets"))) or ("locating bug core snippets"))*.