Perhaps you should try some spelling variations:
khong cang » thong cong, hong bang, khong dung
hanh trang » thanh trung, canh tranh, hanh trinh
lieu tinh » trieu tinh, diep tinh, bien tinh
trang cua » tranh cua, tang cua, trung cua
doi lieu » duoc lieu, doi chieu, du lieu
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi lieu tinh - hanh trang cua ((khong cang) or (trong cong)) dan ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - hanh trang cua ((khong cang) OR (trong cong)) dan ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - hanh trang cua ((khong cang) or (trong cong)) dan ((than cau) or (phan cau))*.