Perhaps you should try some spelling variations:
trong thuat » trong hoat, trong thu, trong phat
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thuat dung » thuat hung, thuat ung, thuat xung
anh trong » anh thuong, dinh trong, lang trong
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) OR (chieu sach)) - anh trong thuat dung cong manh ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - anh trong thuat dung cong manh ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sach)) - anh trong thuat dung cong manh ((toan cao) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sach)) - anh trong thuat dung cong manh ((toan cao) or (toan ban))*.