Perhaps you should try some spelling variations:
cong chuc » cong thuc, cong cu, cong cua
nuoc sach » nguoi sach, hoc sach, cuoc cach
chuc van » chu van, chuc va, thuc van
thang di » hang di, thang loi, thanh doi
nuoc sac » nuoc san, nuoc gac, nuoi sach
hieu ve » hieu va, hieu van
ve cong » te cong
nang xa » nang x, lang xa, nang ma
tang di » hang di, tang du, tang da
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((nuoc sac) OR (nuoc sach)) ky nang xa hoi. hieu ve cong chuc van ((thang di) or (tang di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nuoc sac) OR (nuoc sach)) ky nang xa hoi. hieu ve cong chuc van ((thang di) OR (tang di)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nuoc sac) OR (nuoc sach)) ky nang xa hoi. hieu ve cong chuc van ((thang di) or (tang di)) cua tre".
• Adding a wildcard symbol may retrieve word variants: ((nuoc sac) OR (nuoc sach)) ky nang xa hoi. hieu ve cong chuc van ((thang di) or (tang di)) cua tre*.