Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"qua dan dung snippets" » "qua van dung snippets", "qua tin dung snippets", "qua ap dung snippets", "qua danh dung snippets", "qua ban dung snippets", "cua dan dung 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: (((("qua dan dung snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua dan dung snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( qua dan dung snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua dan dung snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.