Perhaps you should try some spelling variations:
tuong quang » truong quang, thuong quang, luong quang
nhung tuong » nhung huong, nhung phuong, hung vuong
quang trung » truong trung
theo chieu » theo tieu, ho chieu, theo chu
trinh quan » tinh quang, trinh luat, trinh han
trinh cua » tinh cua, trinh luat, trinh luan
trung ban » trong ban, trung van, trung can
doi chi » doi khi

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 (doi chi)) xanh - hanh ((trinh cua) OR (trinh quan)) nhung tuong quang trung ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chi)) xanh - hanh ((trinh cua) OR (trinh quan)) nhung tuong quang trung ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (doi chi)) xanh - hanh ((trinh cua) OR (trinh quan)) nhung tuong quang trung ban".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chi)) xanh - hanh ((trinh cua) OR (trinh quan)) nhung tuong quang trung ban*.