Perhaps you should try some spelling variations:
cam thuc » am thuc, cam thu, can thuc
nam thuc » nam thuoc, am thuc, nam thu
dan hanh » dang hanh, dan khanh, dan thanh
nang xa » nang x, lang xa, nang ma
luu tre » luu tru, cuu tre, luy tre
su cac » tu cac, su cao, su can
vi luu » vi lua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang xa hoi. hieu qua ((cam thuc) OR (nam thuc)) dan hanh vi luu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky nang xa hoi. hieu qua ((cam thuc) OR (nam thuc)) dan hanh vi luu tre".
• Adding a wildcard symbol may retrieve word variants: su cac ky nang xa hoi. hieu qua ((cam thuc) OR (nam thuc)) dan hanh vi luu tre*.