Perhaps you should try some spelling variations:
khong quang » hong quang, khong quan, phuong quang
thieu nganh » hieu nganh, trien nganh, nghiep nganh
thong quang » thong quan, thong qua, luong quang
hoc thieu » toc thieu, hoc hien
hanh mang » nhanh mang, hanh trang, nhanh lang
mang hoac » mang hoc, hang hoa, nang hoc
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: hoc thieu nganh - hanh mang hoac ((khong quang) OR (thong quang)) tinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu nganh - hanh mang hoac ((khong quang) OR (thong quang)) tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu nganh - hanh mang hoac ((khong quang) OR (thong quang)) tinh toan cau*.