Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
thong cong » trong cong, tong cong, thong thong
chua xang » chuc nang, chu bang, chua dong
chua nang » chuc nang, kha nang, cuu nang
thanh tap » thanh tai, thanh tay, thanh tam
thanh lap » thanh san, phan lap, thanh hai
trung va » truong va, trang va, trung ha
va thong » va thuong, va phuong, he thong
cong van » cong vang, cong san, song van

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 xang) OR (chua nang)) - manh trung va thong cong van ((thanh tap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua xang) OR (chua nang)) - manh trung va thong cong van ((thanh tap) OR (thanh lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chua xang) OR (chua nang)) - manh trung va thong cong van ((thanh tap) or (thanh lap))".
• Adding a wildcard symbol may retrieve word variants: theo ((chua xang) OR (chua nang)) - manh trung va thong cong van ((thanh tap) or (thanh lap))*.