Perhaps you should try some spelling variations:
ngang thanh » nang thanh, nganh thanh, ngan thanh
hanh trinh » canh tranh, hanh chinh
cong ngang » cong nhan, cong quang, cong lang
thanh tai » thanh hai, thanh toan, doanh tai
vat lang » va lang, vat mang, tai lang
van lang » van nang, va lang, van hang
doi chi » doi khi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc thieu) or (doi chi)) xanh - hanh trinh ((vat lang) or (van lang)) cong ngang thanh tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (doi chi)) xanh - hanh trinh ((vat lang) OR (van lang)) cong ngang thanh tai.
• Adding a wildcard symbol may retrieve word variants: ((toc thieu) or (doi chi)) xanh - hanh trinh ((vat lang) or (van lang)) cong ngang thanh tai*.