Perhaps you should try some spelling variations:
vat thanh » dat thanh, tat thanh, viet thanh
phan thuc » nhan thuc, phap thuc, pham thuc
gat thanh » dat thanh, tat thanh, gian thanh
so cach » so sach, co cach, loi cach
cach tu » cach thuc
tu nang » tru nang, tu nong, tu nano
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve phan » va phan, ke phan, ve phat
hai cua » thai cua, dai cua, hoi cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so cach tu nang xa hoi. hieu ve phan thuc ((vat thanh) OR (gat thanh)) hai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so cach tu nang xa hoi. hieu ve phan thuc ((vat thanh) OR (gat thanh)) hai cua te".
• Adding a wildcard symbol may retrieve word variants: so cach tu nang xa hoi. hieu ve phan thuc ((vat thanh) OR (gat thanh)) hai cua te*.