Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pha cua du snippets" » "pha cua code snippets", "phat cua du snippets", "phai cua du snippets", "pham cua du snippets", "pha cua duc snippets", "pha cua ndu snippets", "pha cua su 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: (((("pha cua du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha cua du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pha cua du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha cua du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.