Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"mong vu cach snippets" » "mong vu code snippets", "long vu cach snippets", "cong vu cach snippets", "mong du cach snippets", "mong va cach snippets", "mong ve cach snippets", "mong vu bach 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: (((("mong vu cach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mong vu cach snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( mong vu cach snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong vu cach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.