Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doc tham du snippets" » "doc tham code snippets", "doc tam du snippets", "doc than du snippets", "doc thau du snippets", "doc thap du snippets", "doc tham do snippets", "doc pham duc 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: (((("doc tham 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: (((("doc tham du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doc tham du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc tham du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.