Perhaps you should try some spelling variations:
te sach » toc sach
van hau » van hai, van dau, van hac
luc van » luoc van, luu van, luc va
duc van » duc va, duc tan, duc manh
chu tre » cho tre, chu tri, cuu tre
y nang » ky nang, ly nang, v nang
van ha » van hoa, van chat, van hanh
x hoi » xa hoi, o hoi, x ho
kem » kiem

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang x hoi. hieu ((van hau) or (van ha)) ((luc van) OR (duc van)) hanh kem chu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. hieu ((van hau) OR (van ha)) ((luc van) OR (duc van)) hanh kem chu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x hoi. hieu ((van hau) or (van ha)) ((luc van) OR (duc van)) hanh kem chu tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu ((van hau) or (van ha)) ((luc van) OR (duc van)) hanh kem chu tre*.