Perhaps you should try some spelling variations:
trinh quang » tinh quang, trinh quan, tranh quang
chieu sang » chieu sach, chieu xanh, hieu lang
thong manh » thong minh, thong mang, thong danh
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh qua » trinh quan, trinh cua, trinh luat
manh toan » thanh toan, anh tuan, tinh toan
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 sang - hanh ((trinh qua) OR (trinh quang)) thong thong manh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sang - hanh ((trinh qua) OR (trinh quang)) thong thong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - hanh ((trinh qua) OR (trinh quang)) thong thong manh toan ban*.