Perhaps you should try some spelling variations:
thuong phung » thuong phuong, thuong hung, truong phuong
lieu tinh » trieu tinh, diep tinh, bien tinh
trinh vat » trinh luat, sinh vat, trinh han
trinh van » trinh han, trinh quan, trinh toan
doi lieu » duoc lieu, doi chieu, du lieu
van tan » van tuan, van ban, van tai
tan tap » toan tap, han tap, tan tat

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - hanh ((trinh vat) OR (trinh van)) thuong phung van tan tap~.
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - hanh ((trinh vat) or (trinh van)) thuong phung van tan tap*.