Perhaps you should try some spelling variations:
thuat sach » thuat lanh
thuat san » thuat toan, thuat song, thuat lanh
hang via » hang va, hang vi, hang giao
via cua » gia cua, gian cua, giau cua
va hang » van hang, va nang, va lang
cao duc » dao duc, cao suc, tao duoc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat sach) or (thuat san)) y nang xa hoi. hieu ve ((cao duc) or (giao duc)) va hang via cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat sach) OR (thuat san)) y nang xa hoi. hieu ve ((cao duc) OR (giao duc)) va hang via cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thuat sach) or (thuat san)) y nang xa hoi. hieu ve ((cao duc) or (giao duc)) va hang via cua tre*.