Perhaps you should try some spelling variations:
trinh van » trinh han, trinh quan, trinh toan
cham doc » cham soc, chat doc, chau doc
tinh van » dinh van, tinh va, tich van
te sach » toc sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
hieu va » lieu va, hieu qua
va cham » va chat, va tham
nang o » nang co, nang ho, nang ro
doc va » duoc va, hoc va, duc va
cua su » qua su
o hoi » co hoi, o hoc, o hai

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 ly nang o hoi. hieu va cham doc va ((tinh van) OR (trinh van)) cua su~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly nang o hoi. hieu va cham doc va ((tinh van) OR (trinh van)) cua su".
• Adding a wildcard symbol may retrieve word variants: te sach ly nang o hoi. hieu va cham doc va ((tinh van) OR (trinh van)) cua su*.