Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"yang danh du snippets" » "yang danh code snippets", "dang dinh du snippets", "tang dan du snippets", "van danh du snippets", "yang danh dau snippets", "yang danh tu snippets", "yang dinh du 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: (((("yang danh 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: (((("yang danh du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( yang danh du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("yang danh du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.