Perhaps you should try some spelling variations:
chao truong » cho truong, cao truong, cac truong
hanh trinh » canh tranh, hanh chinh
trinh chao » trinh chat, trinh han, trinh co
hieu tinh » chieu tinh, lieu tinh, kieu tinh
dong sanh » dong anh, dong danh, dong lanh
doc hieu » toc thieu, hoc thieu, hoc hien
dong san » cong san, dong bang, dong von
phan cau » phan dau, phan cac, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu tinh - hanh trinh chao truong ((dong san) or (dong sanh)) ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu tinh - hanh trinh chao truong ((dong san) OR (dong sanh)) ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - hanh trinh chao truong ((dong san) or (dong sanh)) ((phan cau) or (phan tu))*.