Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
lan thuong » han thuong, lan phuong, hang thuong
hien trang » huyen trang, mien trung, bien trong
hien sang » khien bang, chieu sang, thien bang
cong manh » cong danh, duong manh, cong thanh
anh dang » anh dong, anh dung, anh bang
dang lan » dang van, dang dan, dang hanh
toan tai » doanh tai, toan ban, toan cao
toan tap » toan 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 ((hien sang) OR (hien trang)) - anh dang lan thuong cong manh ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien sang) OR (hien trang)) - anh dang lan thuong cong manh ((toan tai) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien sang) OR (hien trang)) - anh dang lan thuong cong manh ((toan tai) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sang) OR (hien trang)) - anh dang lan thuong cong manh ((toan tai) or (toan tap))*.