Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"ke hong duc snippets" » "ke dang duc snippets", "ke ton duc snippets", "ke huong duc snippets", "le hong duc snippets", "ke cong duc snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ke hong duc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ke hong duc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( ke hong duc snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))*.