Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
hdinh trong » hinh trong, chinh trong, sinh trong
dinh trong » sinh trong, chinh trong, dinh thuong
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
van nhung » van nhuong, va nhung, van hung
cong san » cong tac
toan cao » toan tap
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 thieu khang - ((hdinh trong) or (dinh trong)) van nhung cong san ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - ((hdinh trong) OR (dinh trong)) van nhung cong san ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu khang - ((hdinh trong) or (dinh trong)) van nhung cong san ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - ((hdinh trong) or (dinh trong)) van nhung cong san ((toan cao) OR (toan ban))*.