Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thu sach » tu sach, thuoc sach, thu hoach
trung ca » trung cap, truong ca, trung cua
nang xa » nang x, lang xa, nang ma
van dac » van dau, van hac, van dan
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ca dan » cac dan, ca dao
dan da » dan dat, dan ca, dan va
da cua » dai cua, day cua, dan cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) OR (thuat sach)) y nang xa hoi. hieu ((van dac) or (van dao)) trung ca dan da cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuat sach)) y nang xa hoi. hieu ((van dac) OR (van dao)) trung ca dan da cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuat sach)) y nang xa hoi. hieu ((van dac) or (van dao)) trung ca dan da cua tre*".