Perhaps you should try some spelling variations:
nguoi sach » nguoi san, nuoc sach
van thanh » ban thanh, van tuan
van hanh » ban hanh, van anh, van ban
tai cua » thai cua, tai cuc, tri cua
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cam loc » cam lo
ve cam » ve cham, ve cac, va cam
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: ((nguoi sach) or (te sach)) ky nang xa hoi. hieu ve cam loc ((van hanh) OR (van thanh)) tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nguoi sach) OR (te sach)) ky nang xa hoi. hieu ve cam loc ((van hanh) OR (van thanh)) tai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nguoi sach) or (te sach)) ky nang xa hoi. hieu ve cam loc ((van hanh) OR (van thanh)) tai cua te".
• Adding a wildcard symbol may retrieve word variants: ((nguoi sach) or (te sach)) ky nang xa hoi. hieu ve cam loc ((van hanh) OR (van thanh)) tai cua te*.