Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong van cho snippets" » "dong van code snippets", "duong van cho snippets", "dang van cho snippets", "dong von cho snippets", "dong van chi snippets", "dong san cho snippets", "dong van chat 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 van cho 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 van cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong van cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong van cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.