Perhaps you should try some spelling variations:
tham soc » cham soc, tham nuoc, thai son
dieu cua » dieu tra
dien cuc » dien tu, vien cac, dien hoc
te sach » toc sach
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
nang xa » nang x, lang xa, nang ma
sach v » sach va, sach y, sach 2
ca dan » cac dan, ca dao
v nang » va nang, vu nang, van nang
va dan » va dao, va dau, va dap

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 v nang xa hoi. hieu va tham soc ((va dan) OR (ca dan)) ((dien cuc) or (dieu cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang xa hoi. hieu va tham soc ((va dan) OR (ca dan)) ((dien cuc) OR (dieu cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang xa hoi. hieu va tham soc ((va dan) OR (ca dan)) ((dien cuc) or (dieu cua)) tre*".