Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo phap » thi phap
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, nhanh lang
cong tinh » cong trinh, cong vinh, long tinh
theo kha » thao khoa, theo chu, thep nha
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: ((theo kha) OR (theo phap)) nang - ((hanh tang) or (hanh mang)) va nhung cong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo kha) OR (theo phap)) nang - ((hanh tang) OR (hanh mang)) va nhung cong tinh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo kha) OR (theo phap)) nang - ((hanh tang) or (hanh mang)) va nhung cong tinh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((theo kha) OR (theo phap)) nang - ((hanh tang) or (hanh mang)) va nhung cong tinh toan cao*.