Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
nhung cong » dung cong, thong cong, hang cong
chinh va » chinh ta, chinh tai, hanh va
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan tap » toan tap, tuan tai, tuyen tap

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) or (((chieu xanh) OR (chieu sang)))) - hanh chinh va nhung cong van tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu khang) OR (((chieu xanh) OR (chieu sang)))) - hanh chinh va nhung cong van tuan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu khang) or (((chieu xanh) OR (chieu sang)))) - hanh chinh va nhung cong van tuan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu khang) or (((chieu xanh) OR (chieu sang)))) - hanh chinh va nhung cong van tuan tap*.