Perhaps you should try some spelling variations:
hieu cua » hieu qua, dieu cua, bieu cua
thu nang » thu hang, thu bang, tho nang
thi nang » thi cong, ki nang, thi hanh
nhan tuc » nhan thuc, nhan luc, nhanh thuc
cua nhan » ca nhan, cua ngan, cua nha
te sach » toc sach
tai cua » thai cua, tai cuc, tri cua
han tai » hang tai, nhan tai, van tai
tuc va » thuc va, truc va, tuc xa
va han » va phan, van han, va hanh
cua tu » cua tuc, cua su, cua cu

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)) ((xa hoi) or (x ho)). hieu cua nhan tuc va han tai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thu nang) OR (thi nang)) ((xa hoi) OR (x ho)). hieu cua nhan tuc va han tai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thu nang) OR (thi nang)) ((xa hoi) or (x ho)). hieu cua nhan tuc va han tai cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach ((thu nang) OR (thi nang)) ((xa hoi) or (x ho)). hieu cua nhan tuc va han tai cua tu*.