Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
thu nang » thu hang, thu bang, tho nang
phan thi » pham thi, tran thi, phan tu
thi nang » thi cong, ki nang, thi hanh
phan tai » pham tai, nhan tai, han tai
te sach » toc sach
va cham » va chat, va tham
hieu va » lieu va, hieu qua
cua tu » cua tuc, cua su, cua cu
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 ((thu nang) or (thi nang)) x hoi. hieu va cham duc va ((phan tai) OR (phan thi)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thu nang) OR (thi nang)) x hoi. hieu va cham duc va ((phan tai) OR (phan thi)) cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thu nang) or (thi nang)) x hoi. hieu va cham duc va ((phan tai) OR (phan thi)) cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach ((thu nang) or (thi nang)) x hoi. hieu va cham duc va ((phan tai) OR (phan thi)) cua tu*.