Perhaps you should try some spelling variations:
phan kien » van kien
kien cua » khien cua, dien cua, tien cua
thu sach » tu sach, thuat sach, thuoc sach
hieu ve » hieu va, hieu van
va phan » van phan, va phat, va phap
cao suc » cao su, cao duc
thu sac » thu xac, thu dac, thuy san
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
thu san » thuy san, thu ban, phu san
ve cao » va cao, ve bao, ve cac
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: ((((thu sac) OR (thu sach))) or (thu san)) ky lang xa hoi. hieu ve cao suc va phan kien cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((thu sac) OR (thu sach))) OR (thu san)) ky lang xa hoi. hieu ve cao suc va phan kien cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((thu sac) OR (thu sach))) or (thu san)) ky lang xa hoi. hieu ve cao suc va phan kien cua te".
• Adding a wildcard symbol may retrieve word variants: ((((thu sac) OR (thu sach))) or (thu san)) ky lang xa hoi. hieu ve cao suc va phan kien cua te*.