Perhaps you should try some spelling variations:
thien van » thi van
van hang » van khang, van hoang, van thang
te sach » toc sach
ly nang » ky nang, ly hang, ly vang
nam loc » nam lo, nam moc, nam soc
va hang » va nang, va lang, va hanh
y nang » ky nang, v nang, may nang
x hoi » xa hoi, o hoi, x ho

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) OR (ly nang)) x hoi. thien van nam loc ((va hang) or (van hang)) dai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ly nang)) x hoi. thien van nam loc ((va hang) OR (van hang)) dai cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) OR (ly nang)) x hoi. thien van nam loc ((va hang) or (van hang)) dai cua vat".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) OR (ly nang)) x hoi. thien van nam loc ((va hang) or (van hang)) dai cua vat*.