Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong lieu co snippets" » "dong lieu code snippets", "dong hieu co snippets", "dong dieu co snippets", "dong tieu co snippets", "dong lieu so snippets", "dong lieu cong snippets", "dong lieu hoc 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: (((("dong lieu co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong lieu co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong lieu co snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong lieu co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.