Perhaps you should try some spelling variations:
thuong trong » thong trong, duong trong, thuoc trong
quan thuong » quang phuong, quang truong, quyen thuong
hoc thuyet » hoc chuyen
luong quan » thong quan, duong qua
hoc thiet » hoc thieu, hoc hien, toc thieu
anh luong » anh huong, anh duong, nang luong
trong dan » trong dang, trong san, trong tan
than ban » thanh ban, than man, nhuan ban
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 thiet) or (hoc thuyet)) danh - anh luong quan thuong trong dan ((than ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc thuyet)) danh - anh luong quan thuong trong dan ((than ban) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc thuyet)) danh - anh luong quan thuong trong dan ((than ban) or (toan ban))*.