Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien 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 cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: moi ((thieu quang) or (hieu qua)) - hanh chinh cua nang luong dao toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: moi ((thieu quang) OR (hieu qua)) - hanh chinh cua nang luong dao toan cau.
• Adding a wildcard symbol may retrieve word variants: moi ((thieu quang) or (hieu qua)) - hanh chinh cua nang luong dao toan cau*.