Perhaps you should try some spelling variations:
thong trong » thuong trong, thong thong, thong thuong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trong hinh » trong thinh, trong kinh, trong sinh
hinh toan » tinh toan, thanh toan, trinh toan
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang
va thong » va thuong, va phuong, he thong
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: theo chieu xanh - ((anh tang) or (anh nang)) va thong trong hinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((anh tang) OR (anh nang)) va thong trong hinh toan ban*.