Perhaps you should try some spelling variations:
manh thong » anh thong, manh tuong, mang thong
chuan long » chat long, chua dong, quan long
chua nang » chuc nang, chua xang, cuu nang
long cong » luong cong, cong cong, tong cong
cong tinh » cong trinh, cong vinh, long tinh
kha nang » phap nang, ky nang, ki nang
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: theo ((chua nang) OR (kha nang)) - ((manh thong) or (hang thuong)) chuan long cong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua nang) OR (kha nang)) - ((manh thong) OR (hang thuong)) chuan long cong tinh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chua nang) OR (kha nang)) - ((manh thong) or (hang thuong)) chuan long cong tinh toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chua nang) OR (kha nang)) - ((manh thong) or (hang thuong)) chuan long cong tinh toan tap*.