Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
cong khan » cong khanh, cong nhan, cong phan
sach nhan » sach nha, sach han, sach ngan
nhan hoat » nhan hoa, nhanh hoan, nhan vat
hoat khi » thoat khoi, hoat doi, suat khi
tu sach » thu sach, su sach, te sach
te cac » ve cac, te cao, de cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((te cac) OR (tu cac)) nganh cong khan đong luc ) or ( tu sach nhan hoat khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((te cac) OR (tu cac)) nganh cong khan đong luc ) OR ( tu sach nhan hoat khi đong luc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((te cac) OR (tu cac)) nganh cong khan đong luc ) or ( tu sach nhan hoat khi đong luc ))".
• Adding a wildcard symbol may retrieve word variants: (( ((te cac) OR (tu cac)) nganh cong khan đong luc ) or ( tu sach nhan hoat khi đong luc ))*.