Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
theo chieu » theo tieu, ho chieu, theo chu
trinh quan » tinh quang, trinh luat, trinh han
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh luan
quan phan » quang phan, luan phan, qua phan
phan cac » nhan cach, phan dau, 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: ((theo chieu) or (hoc thieu)) xanh - hanh ((trinh cua) OR (trinh quan)) khong thong quan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (hoc thieu)) xanh - hanh ((trinh cua) OR (trinh quan)) khong thong quan phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (hoc thieu)) xanh - hanh ((trinh cua) OR (trinh quan)) khong thong quan phan cac".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (hoc thieu)) xanh - hanh ((trinh cua) OR (trinh quan)) khong thong quan phan cac*.