Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh han
lieu tinh » trieu tinh, diep tinh, bien tinh
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
phan cau » phan dau, phan cac, phan tu
ho lieu » so lieu, co lieu, ho kieu
luat » luan, xuat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - hanh ((trinh luat) or (trinh quan)) thanh cong van phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh ((trinh luat) OR (trinh quan)) thanh cong van phan cau.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh ((trinh luat) or (trinh quan)) thanh cong van phan cau*.