Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dap tung do snippets" » "dap tung code snippets", "dap ung do snippets", "dang tung do snippets", "dap nhung do snippets", "dap trung do snippets", "dap tung ho snippets", "dap dung do snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

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