Perhaps you should try some spelling variations:
"dong trinh thi snippets" » "cong trinh thi snippets", "dong tinh thi snippets", "dong tranh thi snippets", "dong trinh tai snippets", "dong trinh thiet snippets", "dong trinh tu snippets"
"hang java java slippers" » "hang va java slippers", "hang java java slippery", "hang java java grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("hang java java slippers") or ("dong trinh thi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang java java slippers") OR ("dong trinh thi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang java java slippers ) or ( dong trinh thi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang java java slippers") or ("dong trinh thi snippets"))) or ("locating bug code snippets"))*.