Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
theo dieu » theo tieu, theo chieu, thuoc dieu
dieu danh » dieu hanh, tieu danh, dia danh
trinh cua » tinh cua, trinh luat, trinh luan
nong san » dong san, nong dan, trong san
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dieu danh - hanh ((trinh cua) or (trinh quan)) hang ((nong san) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dieu danh - hanh ((trinh cua) OR (trinh quan)) hang ((nong san) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo dieu danh - hanh ((trinh cua) or (trinh quan)) hang ((nong san) or (cong san)) toan cau*.