Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thuc va » thuc vat, thuc dan, thuc day
nang xa » nang x, lang xa, nang ma
vu tham » va tham, vu cham, vu thai
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vu kham » vu khanh
vi cua » vai cua, di 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: ((thuoc sach) or (thu hoach)) ky nang xa hoi. hieu ((vu tham) OR (vu kham)) thuc va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (thu hoach)) ky nang xa hoi. hieu ((vu tham) OR (vu kham)) thuc va danh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) or (thu hoach)) ky nang xa hoi. hieu ((vu tham) OR (vu kham)) thuc va danh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (thu hoach)) ky nang xa hoi. hieu ((vu tham) OR (vu kham)) thuc va danh vi cua te*.