Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
doc sach » toc sach, nuoc sach, dac sac
danh vai » danh sai, danh va, doanh van
hoc sach » hoc sinh, hoc cac, hoc anh
tru nang » tra nang, tri nang, truc nano
cao suc » cao su, cao duc
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
nang xa » nang x, lang xa, nang ma
qua cao » qua cac, qua ca, qua cai
suc va » duc va, tuc va, luc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (((doc sach) OR (hoc sach)))) tru nang xa hoi. hieu qua cao suc va danh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (((doc sach) OR (hoc sach)))) tru nang xa hoi. hieu qua cao suc va danh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) or (((doc sach) OR (hoc sach)))) tru nang xa hoi. hieu qua cao suc va danh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (((doc sach) OR (hoc sach)))) tru nang xa hoi. hieu qua cao suc va danh vai cua te*.