Perhaps you should try some spelling variations:
trong manh » trong minh, trong anh, trong mach
hieu sang » chieu sang, hieu lang, hieu quang
quang qua » quang cua, quang tuan, quang xuan
manh toan » thanh toan, anh tuan, tinh toan
doc hieu » toc thieu, hoc thieu, hoc hien
qua dung » quang dung, su dung, qua song
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: doc hieu sang - tinh quang qua dung trong manh toan ban~.
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - tinh quang qua dung trong manh toan ban*.