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