Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, huu quang
diep quang » dinh quang
nang luong » nang song
chinh cua » chinh ca, chinh sua, hinh cua
luong dao » duong dao, truong dao, luong giao
cua nang » chua nang, cua dang, cua hang
dao toan » bao toan, dan toan, dao hoan
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: moi ((((hieu quang) OR (diep quang))) or (hieu qua)) - hanh chinh cua nang luong dao toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: moi ((((hieu quang) OR (diep quang))) OR (hieu qua)) - hanh chinh cua nang luong dao toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "moi ((((hieu quang) OR (diep quang))) or (hieu qua)) - hanh chinh cua nang luong dao toan tap".
• Adding a wildcard symbol may retrieve word variants: moi ((((hieu quang) OR (diep quang))) or (hieu qua)) - hanh chinh cua nang luong dao toan tap*.