Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong van cac snippets" » "dong van code snippets", "duong van cac snippets", "dang van cac snippets", "dong von cac snippets", "dong van hac snippets", "dong van cau snippets", "dong van bac 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 cac 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 cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong van cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong van cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.