Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh han
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
quang tuan » quang thanh, quan luan, quang cua
tieu danh » dieu danh, tiep danh, thien danh
trinh cua » trinh luat, trinh quan, trinh chat
tinh cua » sinh cua, tinh chat, tranh cua
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu danh - hanh ((trinh luan) or (((tinh cua) OR (trinh cua)))) nhung cong quang tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu danh - hanh ((trinh luan) OR (((tinh cua) OR (trinh cua)))) nhung cong quang tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu danh - hanh ((trinh luan) or (((tinh cua) OR (trinh cua)))) nhung cong quang tuan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu danh - hanh ((trinh luan) or (((tinh cua) OR (trinh cua)))) nhung cong quang tuan cau*.